 | said by PGHammer:RetroTV is typically in mono (and offered as a subchannel by local OTA stations where it's offered at all). Here in Washington, DC, it's WJLA-TV/DT that offers RetroTV (subchannel 7-3). Actually the network is full stereo, but the source material is often mono. BTSC stereo wasn't rolled out till the mid 80s so they never bothered to produce them in stereo, even though most playback formats had 2 channels starting with 1", beta and uMatic (1975ish). You'll notice many of the ads are stereo, the debt help one is definitely. I'm waiting for the later Knight Riders, Voyagers, etc. to see if they pass them in stereo.
Its offered wherever the station chooses to put it, there are many who are on the "main". There's no difference really except the number, the bitrate, audio etc can actually be BETTER than the main if setup that way. My .2 is the same rate as the .1 (9 mbps) |