Frasier (Channel 4, 10.00pm)
THERE'S little that Frasier and Niles Crane don't know about culture, but precious little they do know about life's practicalities.
So it's no surprise tonight when the brothers are humiliated over their lack of knowledge about car engines.
They decide to sign up to take a basic automobile repair class, but when they are further embarrassed during the hands-on session, they decide to forget the course and become the mischievous class clowns.
Meanwhile, Martin volunteers to train Roz's new puppy, but he becomes so overbearing and dogmatic that the pooch thinks he's the real owner.
Celebrity Big Brother (Channel 4, 8.30pm)
BIG BROTHER is back as a special week-long edition for Comic Relief, kicking off with a live edition.
Davina McCall introduces the six celebrities who will be watched and scrutinised by the nation.
Tonight we see the stars enter the infamous Big Brother house. Within hours of moving in, the housemates must make their first eviction nomination, live on air.
How will these six household names get on? Can they live up to their polished public images under the daily gaze of the Big Brother cameras? Or will they reveal a whole new side to their personalities?
Vote tonight to evict the first celebrity and your call will make money for Comic Relief.
The Mole ( Channel 5, 8.00pm)
HAVING finally uncovered the identity on The Mole in last week's thriller, the final episode of the gripping adventure game show reveals the extraordinary lengths to which this individual went in order to disrupt the efforts of the nine other plucky contestants.
Glen Hugill introduces the action and quizzes the cunning saboteur about the tactics he or she employed.
Did they enjoy the thrill of the chase knowing that one slip up could see them unmasked, or did they grow to love their colleagues and find deceit and double-crossing tough?
We also discover how the contestants feel about their so-called friend who was lying to them all along. The idea of The Mole was a great concept, executed superbly with the tension rising throughout the previous eight episodes. …