can someone identify the music on The Simpsons tonight please

[lingle]

can anyone identify the cool piano music used in the second half of The Simpsons tonight please?

Failing that, can anyone show me how to watch the episode on catchup? I'm just getting lists and lists of old episodes on the Channel 4 website.

Thanks in advance!

Was it . Linus and Lucy from 'A Charlie Brown Christmas'?

I haven't seen the episode,but if the episode shown was the same one listed in The Radio Times then that may be it.

thank you new best friend