All episodes

Mel Giedroyc hosts this first episode featuring comedian Jason Manford, EastEnders actor Maddy Hill, former England goalkeeper David James and businesswoman Samantha Cameron. The contestants face three challenges - making canapes using rough puff pasty, preparing a Paris-Brest, a French dessert, and finally, creating a 3-D cake in the shape of a sporting trophy.

Celebrities take on baking challenges for Sport Relief. Jennifer Saunders hosts this second episode as four celebrities face their three challenges set by judges Mary Berry and Paul Hollywood. The bakers on the starting line are former Labour politician Ed Balls, writer and presenter Victoria Coren Mitchell, sports commentator Chris Kamara and singer and actress Kimberley Walsh. The bakers must make 24 identical American-style muffins for their signature challenge, football pies in the technical challenge and, finally, show-stopping tiered cakes representing an extreme sport. Interesting flavours and confusion abound in this baking battle. Who will bag the coveted title of star baker? Whilst the bakers aim to inspire others to raise money, Denise Lewis visits a project in Tyne and Wear where she meets Linda and Hughie. Hughie was diagnosed with dementia six years ago at the age of 59. Denise finds out how money raised really does make a difference to his quality of life.

Four more celebrities head to the famous Bake Off tent in aid of UK fundraising event, Sport Relief. Judges Mary Berry and Paul Hollywood set three tasks to test each celebrity's baking prowess, while comedian Ed Byrne is on hand to guide them through. The celebrities taking up the baking baton this time are ex-Spice Girl Geri Horner, BBC world affairs editor John Simpson, footballer and pundit Jermaine Jenas and 1990s pop sensation Louise Redknapp.

4/4. Celebrities take on baking challenges for Sport Relief. Sarah Millican hosts this fourth episode, featuring Alison Steadman, Ade Edmondson, Will Young and Morgana Robinson.