Hee Haw plays regularly on Circle TV. The network is carried (OTA) on channel 31.5 (KMAX) in Sacramento, in LA on 9.3 (KCAL), and the Bay Area on 44.5 (KCBW). It may or may not be carried on cable in those areas - cable doesn't always carry the subchannels. Also can be found in many other places outside of California. See Circle TV at Wikipedia.

What this might have to do with PTC on steam locomotives I have no idea. Just responding to prior post. PTC would seem to me to be difficult because of the direct mechanical connection to brakes and throttle and lack of MU (yes, I know, there is or was a box allowing the engineer to control the trailing diesel(s), but that's not good enough for PTC). The brakes could probably be finagled with a suitable computerized brake valve override, but closing the throttle would be another story. I'm sure it could be done, though, with enough engineering and tinkering.