Lawson sets the first challenges for the eager new contestants, with mixed results. Plus: the final episode of 70 Up. Here’s what to watch this evening8pm, Channel 4Nigella Lawson enters the tent as a new judge and all it takes is her saying “sumptuous” to crack Noel Fielding: “I think I might be pregnant.” Chocolate stout cake is the first task for the eager batch of bakers – with one of them daring to put a twist on Nigella’s own recipe. They then need to recreate a coffee and walnut cake from a picture, before doing their self-portrait cake showstoppers. You will gasp in horror at least twice. Hollie Richardson Continue reading...