Homer will go live during both East and West Coast broadcasts, according to Simpsons Executive Producer Al Jean. The patriarch will take up the final three minutes of the mid-May episode, and the team will be using motion capture on voice actor Dan Castellaneta to animate him as he responds to viewers' questions

The idea has been in the works for a while, but efforts were apparently reinvigorated by the success of Grease: Live, although no-one in that musical production was an animated, two-dimensional character. I think.