8-bit Computer TV Channel Use

[Fred Cisin]

On Tue, 19 May 2015, Mark J. Blair wrote:
> My old Color Computer used US VHF channels 3 or 4 for NTSC video. I 
> found a reference to the ZX Spectrum using UK UHF channel 35 for PAL 
> video.
> What other channels were used all over the world by 8-bit home computers 
> (and video games, too, I suppose), and which TV standards were used with 
> them?

About 90% of the stuff sold in USA used VHF 3, or VHF 3&4 switchable.

The Sup'R'Mod II used UHF 34.  It was significant in its popularity with 
early Apple ][, and apparently (based solely on the keyed 4-pin 
Berg connector) was what was considered in the design of CGA.