THE CRYSTAL MAZE, C4, 8pm

I AM still laughing from last week’s episode when that poor asthmatic geek went helplessly twirling around on a swinging planet.

When we saw that a team of nerds were competing last week, I was sure they’d crack every game, scoop every crystal, grab millions of gold tickets and zip off home to spend their prize money on inhalers and Dungeons and Dragons – but the geeks were surprisingly rubbish, and our expectations were totally wrong. They strolled in, confident as only nerds who’ve painstakingly studied every episode can be, and they failed miserably.

So what about this week, when we have a team of cheerleaders? Our image of a gang of cheerleaders may well be of a team of giggly, glamorous girls – but, as with last week’s nerds, will they upset all our predictions? Let’s see how five young women fare as they swap their cheerleading costumes for those serious grey jumpsuits.

ROCK AND ROLL, SKY ARTS, 9pm

MY dad swears Marc Bolan is the greatest, and while I admit he had the tunes, the style and the glamour, his lyrics were often a bit daft: “Well she ain’t no witch and I love the way she twitch”. What’s that supposed to mean?

I require brilliant lyrics in a song, and that’s why Morrissey is my man. A good pop tune without deep lyrics can never be a great song; the two elements must go hand in hand, and that’s what this programme is all about.

Musicians talk about how pop lyrics became “the poetry of the modern age”. Joni Mitchell and Pete Doherty feature, giving insight on the power of lyrics, and how they can tell a devastating story in three minutes.

We begin with Bob Dylan – obviously – and we’re told he “elevated rock ’n’ roll to an art form”. The programme is also brave enough to step away from traditional rock music and look at the lyrics from hip hop.