TV sizes / 77-inch
77-inch TV: dimensions, viewing distance and VESA
A 77-inch 16:9 screen measures 67.1 x 37.8 in (170 x 96 cm) — 196% of the picture area of a 55-inch. Sit about 10 ft 5 in away for everyday viewing (SMPTE 30°) or 7 ft 8 in for a cinema-style view (THX 40°). Of the 16 77-inch models listed here, the most common VESA pattern is 300 x 300 mm (4 models).
Screen dimensions
TV size is the screen's diagonal. For a 16:9 panel the width is 0.8716 times the diagonal and the height 0.4903 times, so a 77-inch screen is 67.1 in wide and 37.8 in tall. The TV itself is larger by its bezel and, on most models, deeper than the panel at the back where the electronics sit; check the maker's "dimensions without stand" before measuring a recess. The step down to 75-inch takes 1.7 in off the width; the step up to 83-inch adds 5.2 in.
Where a 77-inch TV fits
77 inches suits a large living room or anyone sitting 10 ft 5 in or more away. At this size weight climbs quickly, and the step from a 300 x 300 to a 400 x 300 or 400 x 400 pattern usually happens, so a mount bought for a 65-inch may not reach.
Series available at 77 inches here: LG OLED B6, LG OLED evo C3, LG OLED evo C5, LG OLED evo G3, LG OLED evo G6, LG OLED evo M3, LG OLED evo W6, LG SIGNATURE OLED T4, LG SIGNATURE OLED T6 Transparent, Samsung OLED S85H, Samsung OLED S90H, Samsung OLED S95H, Sony BRAVIA 6 OLED, Sony BRAVIA 8, Sony BRAVIA XR A95L, Sony BRAVIA XR8B.
How far to sit from a 77-inch TV
| Basis | Distance | In feet | What it means |
|---|---|---|---|
| SMPTE 30° (mixed viewing) | 125 in | 10.4 ft | Screen fills a 30° view — the widely quoted everyday figure. |
| THX 40° (cinema) | 92 in | 7.7 ft | A wider 40° view, THX's figure for film. |
| 4K (3840 x 2160) detail limit | 60 in | 5 ft | Farthest seat where 20/20 eyes still resolve single 4K pixels. |
| 1080p (1920 x 1080) detail limit | 120 in | 10 ft | Farthest seat where 20/20 eyes still resolve single 1080P pixels. |
| 8K (7680 x 4320) detail limit | 30 in | 2.5 ft | Farthest seat where 20/20 eyes still resolve single 8K pixels. |
Read the last rows the right way round. Closer than the 1080p limit (10 ft), a 1080p picture shows visible pixel structure and 4K looks sharper; farther away, 1080p already reaches the limit of 20/20 vision. Notice where the two standard seats fall: the SMPTE seat (10 ft 5 in) is just beyond the 1080p limit, so at the everyday distance 4K is barely distinguishable from 1080p, while the THX seat (7 ft 8 in) is well inside it, so for a cinema-style view 4K clearly helps. That relationship holds at every size because all three distances scale with the diagonal. 4K's own pixels are only resolvable within 5 ft, and 8K's within 2 ft 6 in — which is why 8K adds nothing you can see from a sofa.
VESA patterns on 77-inch TVs
4 different patterns appear at this size: 300 x 300 on 4 (36%), 300 x 200 on 3 (27%), 400 x 300 on 3 (27%), 400 x 400 on 1 (9%). Size alone does not tell you the pattern — look up the model. Weights without stand run from 44.5 lb (LG OLED77W6PUA) to 132.9 lb (LG OLED77T4PUA), median 71.2 lb — a spread wide enough that a mount rated for one 77-inch TV may not hold another.
| Model | Series | VESA (mm) | Weight |
|---|---|---|---|
| LG OLED77B6GUA | OLED B6 | 300 x 200 mm | 50.5 lb |
| LG OLED77C3AUA | OLED evo C3 | 300 x 200 mm | 51.8 lb |
| LG OLED77C5PUA | OLED evo C5 | 300 x 200 mm | 51.8 lb |
| LG OLED77G3PUA | OLED evo G3 | 300 x 300 mm | 81.1 lb |
| LG OLED77G6WUA | OLED evo G6 | 300 x 300 mm | 72.8 lb |
| LG OLED77M3YUA | OLED evo M3 | 300 x 300 mm | 80.4 lb |
| LG OLED77W6PUA | OLED evo W6 | Not published | 44.5 lb |
| LG OLED77T4PUA | SIGNATURE OLED T4 | Not published | 132.9 lb |
| LG OLED77T6PUA | SIGNATURE OLED T6 Transparent | Not published | — |
| Samsung QN77S85HAEXZA | OLED S85H | 400 x 300 mm | 62 lb |
| Samsung QN77S90HAEXZA | OLED S90H | 400 x 300 mm | 71.4 lb |
| Samsung QN77S95HAFXZA | OLED S95H | 400 x 400 mm | 69.9 lb |
| Sony K77A60 | BRAVIA 6 OLED | 400 x 300 mm | 55.3 lb |
| Sony K77XR80 | BRAVIA 8 | Not published | 71.2 lb |
| Sony XR77A95L | BRAVIA XR A95L | Not published | 77.6 lb |
| Sony K77XR8B | BRAVIA XR8B | 300 x 300 mm | 71.2 lb |
Brands with a 77-inch model listed: LG, Samsung, Sony. 5 models list no pattern; see their pages.
Dimensions and distances: geometry for a 16:9 screen with the viewing angles and acuity limit cited on the methodology page (Wikipedia, Optimum HDTV viewing distance (SMPTE section, citing a Fujitsu white paper and trade publications)). Patterns and weights: each model's manufacturer page, checked 2026-10-20.