A terrible admission
One of the contestants - Joe Swash - moaning about something or other said this,'It's a bit sheeny, isn't it?'. Or words to that effect, but he definitely used 'sheeny',as I reacted at the time. It is not the best known of unfortunate words, but this is what it means, definition taken from here:
sheeny (shiInI) Also sheny, sheney, sheeney, -ie. [Of obscure origin]
1. n. A derogatory word for a Jew.
2. n. A pawnbroker [derived from racial stereotype of definition 1]
3. adj. Deceitful, dubious, fraudulent (describing people).
I doubt that the contestant would have got away with the 'n' word or 'it's a bit Jewish' and given that the programme makers bleep some of the stronger swear words, I would think that the word got through because the editors did not know the word and could not be bothered to check.