Whatever Happened to the Likely Lads? (1973)

S2E7 In Harm's Way

Bob is suffering greatly from the injury inflicted by Terry's botched DIY project, prompting him to visit the hospital. Meanwhile, Terry is employed there as a porter, a detail he desperately tries to conceal from Bob, even resorting to wearing a disguise. Unfortunately, his misguided efforts to assist Bob end up causing even more trouble for his friend.