Like I said, nixiebunny, we have no way of knowing what their level of tech is, though it would have to be comparable to out 1960’s to be able to receive those signals in the first place.
As I mentioned, SETI dos it and so its perfectly reasonable that there would be species out there who would do similar things.
SETI scans a whole range of frequencies. Their system is also very sensitive and can detect those low power transmissions. It isn’t much of a step to narrow that range of frequencies when a signal is detected (not sure, but I think SETI has that capability). A television is a further step along, where you can receive the specific signals transmitted on a specific frequency. And do so for multiple frequencies by using the channel changer. And don’t forget, we have had global television coverage since we started putting up satellites, so the signal would not be all that intermittent.