Re: Tellies can handle 60Hz input
Yes, but even PERFECT 50Hz to 60Hz frame conversion is RUBBISH
Especially for movement.
Almost all Broadcast is 25fps interlace 50Hz in Europe, There is NO WAY AT ALL to display that as 60fps 60Hz progressive without degradation (blur or shudder) of movement.
Any Picture in Picture the game needs to be running 50Hz 50fps progressive.
Also ANY display of broadcast on a Progressive only panel of interlace source even at same frame rate is degraded compared to CRT or native panel interlace (with strobed backlight).
The very concept of Xbox one is flawed in a world where we have 24fps, 25 fps 30 fps 48fps 50fps 60fps progressive and 25 fps 50Hz, 30fps 60Hz interlace. Not to mention all the different resolutions (more on broadcast than disk).
It's a pity with HD they didn't go for a single 48fps progressive 2136 x 1154 standard instead of the 1/2 dozen or so incompatible standards.
The original 30fps / 60Hz and 25fps /50Hz had to be:
1) Interlace halves the transmission bandwidth. An analogue compression system if you like. Progressive wouldn't have been possible for 40 years.
2) The frequency had to match lighting (or else you'd have strobe bars) and initially local mains (so hum bar on picture would be stationary, hence 24 fps 48 Hz interlace wasn't possible. Video cameras are more sensitive to this effect than film cameras. Later in 1950s the TV Power supplies and Cameras better and so TV frame was no longer locked to mains.
Modern TV was developed 1934 to 1936 initially. Hence the frame rate limitation would last nearly 20 years. Interlace Limitation until MPEG and digital was available to do compression.