Tonight's TV highlights

The Great British Bake-Off 8pm, BBC2 Light/Late Lunch duo Mel Giedroyc and Sue Perkins are reigniting their on-screen partnership to present this WI-friendly national bake-off. Ten amateur cooks from different regions of the UK compete each week to pull off the finest flour-sugar-egg combos. As is becoming commonplace with food shows, there's a faintly ridiculous challenge at the end of it that makes it even more amusing. This week, it's a chocolate-celebration-cake-conundrum. Try to watch without drooling. RN Shooting Stars 9.30pm, BBC2 Vic Reeves and Bob Mortimer's quiz show is in its third decade and its sell-by date is nowhere in sight. Angelos, if anything, is an even better creation than George Dawes, while a whole new raft of running gags, from the magic box to Who is Hitler? and Vic's false teeth have kept the format amply refreshed. It hardly matters that the celebrity guests, who this week include Paloma Faith and James May, might as well be stuffed effigies for all their input. DS True Stories: Big River Man 10pm, More4 Martin Strel may be the world's least likely athletic hero. He's in his mid-50s, somewhat overweight, fond of a drink, and his résumé includes stints as a guitar teacher and a professional gambler – none of which has prevented the burly Slovene from setting staggering records for endurance swimming. John Maringouin's lovely documentary, narrated by Strel's bemused, proud son, joins the Strel camp as he prepares for his most monumental and dangerous challenge – the Amazon. A tense, terrific adventure and a genuinely inspiring story. AM Ideal 10.30pm, BBC3 Ideal – the show starring Johnny Vegas as a low-rent dope dealer – is part sitcom, and increasingly, part psychedelic farce. It goes with the territory, one suspects. When Moz and his girlfriend Jenny arrive in the country with false passports they find a lot has changed. Moz's ex Nikki has revolutionised Salford hash dealing, and moved in with PC Phil Collins in Moz's old flat. All of which is not a problem – but when the rightful owner of his passport turns out to be a psychopathic Chelsea fan, Moz finds his situation far from comic. JR Previews by Rebecca Nicholson, David Stubbs, Andrew Mueller and John Robinson