Well what do you mean "not worth bothering about"? I mean, I like sci-fi TV but come on, it's not Chekhov.
There is a certain attitude that discussing certain kinds of movie or TV is nerdy and therefore not worth bothering with.
If you spend time debating Chekov you're just as big a nerd as if you spend time discussion Galactica. In fact you're a bigger nerd. Galactica is new. It's not been discussed yet. You could simply read the dissertation of someone far more learned about Checkov than you will ever be if you want to understand the subtext of his plays.
I'm not saying that anyone is wrong to discuss Checkov or Bergman. I'm saying that if you do you should realise you're doing the exact same thing that is being done on this thread. There's nothing wrong with discussing things your passionate about with people who hold similar opinions so why should a certain subset of people who do it be insulted just because they like a TV show rather than a play?
If someone wants to say I'm a nerd because I
like Battlestar Galactica that's one thing. But to say I'm a nerd because I
discuss the show simply makes anyone who discusses any entertainment form rather than just switching channels/going staight home a nerd too.