For sentimentality's sake, we hope you indulged in your pre-bed ritual of catching a cheeky episode of American Dad! on BBC Three last night -- because as of the early hours of this morning, it ceased to exist as a broadcast channel. For the next few weeks, it'll be repurposed to promote BBC Three's new online-only identity before disappearing from your TV's EPG... forever. The switch has been a long time coming, of course, with the BBC setting the ball rolling almost two years ago as part of continued cost-cutting measures. Despite some opposition from the public, the BBC Trust formally approved the broadcaster's plan for an online-only BBC Three late last year, and that transition has concluded today.