I've heard many great things but have not been able to make it past the classroom scene in the first episode. I love both of the actors in other media, but I find the dialogue in these opening scenes makes me feel..embarrassed? I have similar feelings about other shows and movies at times where I just have to turn them off because of the way the characters are behaving. I think it just ties directly into some anxiety I have.
Had the exact same reaction to that exact scene. Just couldn't get past it. It wasn't as bad as when I tried to watch Big Bang Theory (which multiple people assured me that I'd love), but it was in that ballpark.
Cringe but persist. TV only has so much time to set stuff up. Think of those parts as a "tribute" to cheesy 80s movies.
Consider just fast-forwarding past a scene you can't handle. Like many shows, it takes a few episodes before the actors truly understand their characters.
The feeling you're experiencing has a name: it's called "cringe". I can't watch Frasier for more than about half an episode because of it. Or I Love Lucy... same problem. But Seinfeld, which has plenty of the same humour mechanic, always seems to manage to stay just below the threshold for me.
Halt and Catch Fire is really, really good. Please trust us. Give it another shot. Skip forward a bit when you feel the need to. Skip the first episode entirely and just read a synopsis if you need to.