The videos of the group selection debate I was mentioning can be found here.
Herb Gintis, Samuel Bowles, and Robert Boyd all have a number of papers on their websites about human cooperation and Boyd in particular about cultural evolution. Robert Boyd's page also has links to his books about cultural evolution. His teaching page has links to podcasts of his course on models of cultural evolution.
The gameshow videos that we watched were from the show Golden Balls. You can see the videos on youtube by searching "split or steal". Other similar shows include Friend or Foe? and Shafted. A academic paper which investigates how people behave in these games is: