I'm from the United States, so this'll be kind of hard for me to describe.
In the 90s I saw a show on PBS (Public Broadcasting System). That's Channel 13 here. It's a television station with public funding. It was on here at some odd hour of the night, like 2AM or 3AM.
So, I'm guessing the show is from the 80s. It had that feel to me.
The only thing I can really remember is it was a guy living in his apartment and he listened to the radio or record player. I don't know if it was totally a comedy or what, because from what I remember it was just that one guy in the whole show or most of the show. Was kind of lonely.
I don't know if there was more than one episode, because they every time I saw the show it was the same thing!
A bunch of years ago I described the show via email to someone and he gave me a possible match to a show I could have bought on VHS tape, but I never did. My memory might have been slightly better then.