It sounds lame, but my grandparents are really into chess as well as my uncles.
The plan is after we play some video games to have two chess games running at a time in the afternoon until we can eventually crown a winner.
The thought is that we will bond more and interact more than if we all were just sitting in front of the tv and not talking to each other.
Games really do bring families together.
You should give it a try sometime.