I think this series looks like it is going to be fun, although it is sad that Maura Tierney had to leave the show due to breast cancer (she is actually in the original trailer, doing this exact same scene.)
NBC has had a rough run and just about all their shows seem to be failing, but the cast does look strong and I plan to at least give it a sampling.
[B]Bonus:[/B] Original trailer.
[url=http://www.youtube.com/watch?v=5vCDj0tsEp0]YouTube - "Parenthood" Trailer[/url]