14yo DD's favourite programme when younger was Outnumbered and she now loves Modern Family but has watched it so many times she is getting a bit bored. It's the semi-realistic family life where they face minor problems but you know it's going to work out and they'll all end up living happily ever after that makes it perfect cosy TV watching for her.
I've been trying to think of something similar and failed! She finds Friends dull and fake.
Half hour episodes and plenty of series would be a bonus! We have every streaming platform possible it seems.