Absolutely. Every night. We eat dinner at just about the same time every night, unless there is an unusual event or sometimes on the weekend if we're doing something.
TV off, we sit at the table. Only on rare occasions, like a Fri night we'll have a special "movie night" and all eat in living room while watching a movie together.
Sometimes on Saturdays we'll have a casual lunch and we'll let them leave the TV on and angle it so it's visible from the table. I hate that b/c the kids just watch it then and won't talk to us.
I grew up in a home where family dinner time was considered sacred. No TV, everybody talks about their day and what is going on. Nobody eats until everyone (who is in the house) has sat down and is ready. Nobody left the table until all finished. As a kid I HATED this but later I realized how important it was for me and the family. The result was that we always knew what each other were doing and felt like a cohesive unit.
My wife's family was the opposite - Mom cooked dinner, set it out, kids would come and get the food and leave to eitehr go watch TV or eat in another room. I vowed, and she agreed we would never let that happen - it's like she was just a waiter and it basically breeded a sense of disconnection in the family.
IMO - and this is just my opinion - thiis is very important. I really believe that "the family that eats together, stays together". You have to teach the kids that listening to your family members is priority #1. Not less important than TV or some gadget. I think it also helps with the attention span thing, and learning good manners. We don't let them down from teh table until everyone finished eating. This is REALLY hard for the 5 y/o b/c she is impatient (being 5) and a picky eater, often says she dosn't want her dinner. So we tell her OK but she has to sit and wait, bored, for teh rest of us. After awhile she'll eat anyway b/c she realizes she's not getting down and has nothing else to do anyway. Plus our son is really sllloooooow - which makes it hard for us... but it helps encourage him to hurry up if we're all waiting on him.
Probably teh hardest thing for my wife and I is to ignore txts etc at the table. We at least won't pick up the phone until we are both done eating and waiting for the kids.
We take turns talking about our day and what we did, or things coming up, or some random weird science factoid that Jonas thinks is amazing and Delaney thinks is stupid.
Many days (most, even) I find myself having to pry myself away from work so I can get home in time for dinner, thinking "Damn family, I wish I could just keep working on this" but then by the end of dinner, it's changed to, "OK now I have life back into perspective".