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The auditorium today 
The plan: two TVs, one each side of the baptistry
Screens & video
Two 100″-class TVs up front, SDI video from the back booth.
Next steps
- To doMeasure the outside cable route from the booth to the room behind the baptistry
- To doPut in 2 regular outlets in the wall behind the front TVs
- To doBuy the TVs and gear (list on this page)
Two big TVs on the front wall, one each side of the baptistry, plus a 65″ confidence monitor on the back wall. Front video goes from the booth computer over SDI on outdoor-rated coax clipped along the outside wall (there's no attic), into the room behind the baptistry, where it's converted back to HDMI and split to both TVs.
How the video gets to the TVs
Pick the front TVs and mounts: the total updates
Tap a TV and a mount to see the full project cost. Prices checked Oct 16, 2026. Amazon items were confirmed in stock; Sam's Club prices are their current sale (ends Oct 18, membership needed; check in club). Amazon links use Micheal's affiliate tag. Not included: tax and installing the 2 outlets.
1. Front TVs (×2)
2. Wall mounts (×2)
Total project cost
$3,783.58
2 × TCL 98″ Q6 QLED$2,595.98
2 × Heavy Duty Fixed (flat) Low-Profile TV Wall Mount, 55–120″$75.98
Everything else (65″ monitor, converters, HDMI, coax, outlets)$1,111.62
$3,907.58
2 × TCL 98″ Q6 QLED$2,595.98
2 × USX STAR Full Motion (swivel) TV Wall Mount, 60–120″ (UL listed)$199.98
Everything else (65″ monitor, converters, HDMI, coax, outlets)$1,111.62
$4,583.58
2 × Samsung 98″ Crystal UHD U9000H$3,395.98
2 × Heavy Duty Fixed (flat) Low-Profile TV Wall Mount, 55–120″$75.98
Everything else (65″ monitor, converters, HDMI, coax, outlets)$1,111.62
$4,707.58
2 × Samsung 98″ Crystal UHD U9000H$3,395.98
2 × USX STAR Full Motion (swivel) TV Wall Mount, 60–120″ (UL listed)$199.98
Everything else (65″ monitor, converters, HDMI, coax, outlets)$1,111.62
$4,783.60
2 × TCL 98″ QM63K Mini-LED (brighter)$3,596.00
2 × Heavy Duty Fixed (flat) Low-Profile TV Wall Mount, 55–120″$75.98
Everything else (65″ monitor, converters, HDMI, coax, outlets)$1,111.62
$4,907.60
2 × TCL 98″ QM63K Mini-LED (brighter)$3,596.00
2 × USX STAR Full Motion (swivel) TV Wall Mount, 60–120″ (UL listed)$199.98
Everything else (65″ monitor, converters, HDMI, coax, outlets)$1,111.62
$2,983.58
2 × TCL 85″ QM6K Mini-LED$1,795.98
2 × Heavy Duty Fixed (flat) Low-Profile TV Wall Mount, 55–120″$75.98
Everything else (65″ monitor, converters, HDMI, coax, outlets)$1,111.62
$3,107.58
2 × TCL 85″ QM6K Mini-LED$1,795.98
2 × USX STAR Full Motion (swivel) TV Wall Mount, 60–120″ (UL listed)$199.98
Everything else (65″ monitor, converters, HDMI, coax, outlets)$1,111.62
$2,723.60
2 × VIZIO 85″ Quantum Mini-LED$1,536.00
2 × Heavy Duty Fixed (flat) Low-Profile TV Wall Mount, 55–120″$75.98
Everything else (65″ monitor, converters, HDMI, coax, outlets)$1,111.62
$2,847.60
2 × VIZIO 85″ Quantum Mini-LED$1,536.00
2 × USX STAR Full Motion (swivel) TV Wall Mount, 60–120″ (UL listed)$199.98
Everything else (65″ monitor, converters, HDMI, coax, outlets)$1,111.62
Everything else on the list
The same no matter which TVs you pick. Home Depot items are standard stock; check your local store.
| Item | Qty | Price | Buy | Notes |
|---|---|---|---|---|
| Confidence monitor (back) | ||||
| Hisense 65″ A6 4K TV 65A6H | 1 | $509.86 | On the back wall so whoever is up front can see the slides and notes (stage display). In stock on Amazon. Sam's may be cheaper in club. | |
| PERLESMITH tilting wall mount, 37–85″ PSLTK1 | 1 | $18.96 | For the 65″. Holds 132 lb. In stock. | |
| BlueRigger 35 ft in-wall HDMI (CL3) 35 ft | 1 | $39.99 | Booth computer's second output to the 65″. Measure; a shorter one is fine if it's close. | |
| Video converters | ||||
| Blackmagic Micro Converter HDMI to SDI 3G (with power supply) CONVCMIC/HS03G/WPSU | 1 | $85.00 | At the booth. AC adapter included. In stock. | |
| Blackmagic Micro Converter SDI to HDMI 3G (with power supply) CONVCMIC/SH03G/WPSU | 1 | $75.00 | Behind the baptistry. AC adapter included. Available. | |
| HDMI | ||||
| OREI UltraHD 1×2 HDMI splitter (4K60) UHDS-102C | 1 | $18.90 | Splits one signal to both front TVs. In stock. | |
| BlueRigger 35 ft in-wall HDMI (CL3) 35 ft | 2 | $39.99 = $79.98 | Splitter to each front TV through the wall. In stock. | |
| Short HDMI cable, 6 ft (computer → converter) any High Speed | 1 | $8.00 (est.) | — | At the booth. Any you already have will work. |
| SDI cable (outside run) | ||||
| trueCABLE RG6 outdoor quad-shield coax, 500 ft, solid copper, direct-burial, UV-rated RG6 Quad Outdoor (CMX) | 1 | $171.99 | Outdoor-rated, so no conduit needed. 500 ft makes both runs: one to the TVs and one spare for a future camera. In stock. | |
| Klein BNC compression connectors for RG6, 10-pack VDV813-607 | 1 | $29.99 | 4 needed (2 per cable) plus spares. Keep the connectors indoors. | |
| 3-in-1 compression tool (BNC / RCA / F) Compression crimper | 1 | $25.95 | Skip if you already have one. You'll also need a coax stripper. | |
| Gardner Bender masonry coax clips, 100-pack, black UV PCS-100B | 2 | $9.00 = $18.00 | Nail into the mortar joints about every 2–3 ft. Two cables, so two packs. | |
| Exterior silicone GE Silicone 2 | 1 | $10.00 (est.) | — | Seal the holes where the coax goes through the walls. |
| Power | ||||
| Regular wall outlet + box + cover plate (behind each front TV) 15A duplex, old-work box | 2 | $10.00 (est.) = $20.00 | — | Two regular outlets put in the wall behind the TVs. |
Other upgrades and alternatives
| Item | Qty | Price | Buy | Notes |
|---|---|---|---|---|
| Wall mounts | ||||
| HOME VISION Heavy Duty Fixed (flat) TV Wall Mount, 48–120″ Fixed, low profile | 2 | $55.99 = $111.98 | Option: flat, holds 264 lb (more than needed), VESA up to 800×600. In stock. | |
| USX MOUNT Heavy Duty Tilting TV Wall Mount, 60–120″ Tilt ± | 2 | $51.99 = $103.98 | Option: even cheaper and tilts down toward the pews. Holds 220 lb, VESA up to 900×600. In stock. | |
| monTEK Heavy Duty Tilting TV Wall Mount, 60–120″ Tilt ±10° | 2 | $64.99 = $129.98 | Option: tilting, holds 300 lb, VESA up to 900×600. In stock. | |
| Video converters | ||||
| Blackmagic BiDirectional SDI/HDMI 3G (with power supply) CONVBDC/SDI/HDMI03G/PS | 1 | $99.00 | Option: converts both ways, so a future camera up front could send video back to the booth on the spare cable. In stock. | |
| HDMI | ||||
| GEARit 35 ft in-wall HDMI (CL3, 4K60) HDMI 2.0 | 2 | $48.98 = $97.96 | Option if you'll ever run 4K60. In stock. | |
Install notes
- Measure the real outside route (up, over, around corners) and add 15%. 3G-SDI is good to about 328 ft on RG6, and the 500 ft spool covers both runs.
- Outside: clip the coax into the mortar joints every 2–3 ft. Drill the wall holes sloping slightly down toward the outside, leave a drip loop before each hole, and seal with silicone. Put the BNC connectors on indoors.
- Set the computer to 1080p60. The Blackmagic converters and the splitter need no setup. Label every cable at both ends.
- Mount with two people, into studs. Center the TVs about 60–72″ above the platform, tilted down if they're high. Check the TV warranty: consumer warranties often exclude commercial or church use.
- The confidence monitor runs off the booth computer's second video output (stage display in your presentation software). It's at the back, so it doesn't need SDI.
Unlisted working page (not in the site menu). Updated 2026-10-16.