On Family Guy...
 

If any of you watch that show, can anyone hear what Stewie is saying? We've always wondered and nobody knows.

When?? He talks alot during the show

Brian always seems to.

There's a joke about it at the end of one episode, a guy asks something along the lines "what's the deal with Stewie, does anyone understand what he says?" but the credits roll before the question is answered...

It's pretty clear that Lois can't hear him since most of her responses are generic. Brian can obviously communicate with him although he never seems to offer to interpret to others. :)

Many people say only Brian (the dog) can hear Stewie, but I've seen a few episodes where Lois answers to something he says.

Everyone knows that dogs and babies converse nicely, but not so well with adult humans.

Not that I watch the show a lot, but there were times where Brian and Stewie did things to amuse/barter with others and they were understood by adults.

It's just another halfassed/halfbaked MacFarlane attempt at humor.

Yeah I knew him and Brian could talk, and I seen the episode where someone asked "Can anyone understand the baby?" but then the credits rolled LOL.

Brian can, no one else

McFarlane? I thought he had Manatee's making his scripts....

DG

Brian can understand him and people that don't know Stewie very well can understand him as well. It was explained when Stewie and Brian went to visit Stewie's old girlfriend and she was this nasty old skank that told Brian her son was his.

not concerned that people talk with brian, the dog?