Naughty word on One Show, almost

I was watching The One Show on tv last night (Thursday 21) with Nicholas Lyndhurst and there was an interview taking place with a woman who helps kids with their numeracy. Anyway, behind her was a surface covered with those alphabet magnets so, naturally, I was checking out the typography instead of watching her. A ‘D’ here, an ‘L’ there and then a little group at the top: ‘F, upside-down-M, C, K’. At first I thought I’d seen the most subtle expletive of all time on national television but no…close but no cigar. (Damn!)