"TV" in this case is short for "televised". That is, it came via a radio signal, rather than being physical film brought back from Mars.

But of course, the bandwidth is far too low to be an NTSC signal and it was digital rather than analog, so actual existing TV equipment couldn't have helped. For the moon landings, it was an actual NTSC television signal generated on the surface of the moon, amplified by ground receivers, passed through real-time scan conversion to bring the FPS to 30, and sent to broadcasters.