That worked for some radio, although you either had to be uncomfortably close to the border, or the radio had to transmit to the USSR intentionally, like Radio

That worked for some radio, although you either had to be uncomfortably close to the border, or the radio had to transmit to the USSR intentionally, like Radio Free Europe. They used signal jammers to jam most of foreign broadcasts but you can't jam everything everywhere. Anyway, even then if you got caught listening, you could face some consequences for anti-soviet behavior. All it needed was one nosy neighbor snitching on you, and commieblocks had notoriously thin walls. As to TV, the USSR and its allies used the SECAM D/K standard that was incompatible with most of the Western world, except France. So maybe East Germans could catch something but it's doubtful. The only people who could maybe have a PAL/NTSC TV would be sailors, truckers, airline personnel who could smuggle something in, however, such a TV would have no other purpose on the USSR apart from watching foreign broadcasts and later contraband VHS tapes. So again, if you get caught, anti-soviet behavior, consequences, and your smuggling career and any chances of getting a visa are over.