You can also do this if you plug in a Sony PS3 as I have done. In doing so I have added the capability to view and listen to internet, iPlayer, 4od, itv/stv/utvPlayers, LoveFilm film rentals, DVD, BluRay, CD, MP3. All of it in 1080p high definition, and all licence free. I have also plugged in my old 80Gb iPod using a composite cable, so I can watch downloaded films and TV series.
<edit> Oh, and occasionally I also use the PS3 to play a game.