Of the shows that are currently airing, my whole family likes:
Grey's Anatomy
Amazing Race
So You Think You Can Dance (we're all obssesed (sp?), we frequently have 30-40min discussions about the strengths and weaknesses of different dancers and who should be kicked off)
I also watch with varying combinations of family members:
Smallville (with my sis and dad)
One Tree Hill (I just started watching it and I've watched 2.5 seasons in just over a month; and my sister also watches)
Grey's Anatomy
Amazing Race
So You Think You Can Dance (we're all obssesed (sp?), we frequently have 30-40min discussions about the strengths and weaknesses of different dancers and who should be kicked off)
I also watch with varying combinations of family members:
Smallville (with my sis and dad)
One Tree Hill (I just started watching it and I've watched 2.5 seasons in just over a month; and my sister also watches)