They are definitely problematic. I don't find Dollhouse all that watchable, though I tuned in last week for Alexis Denisof (and I have no idea what he said or what role he played, because I was distracted by his (real) accent and was busy mentally casting him as Mitchell Hundred (http://en.wikipedia.org/wiki/Ex_Machina_(comics))).

And Glee is very up and down for me; I like the musical numbers and when the non-white/straight/able bodied kids in Glee get a chance to do something, I like their characters too, but the show overall is not smart or subversive enough with its "ironic" characters or satire, so it often ends up being offensive or perpetuating stereotypes that (I think?) it's trying to address.