Income earned from game shows like KBC is indeed taxable in the UK. It falls under the 'Income from Other Sources' category and is subject to a flat tax rate of 30%. Additionally, a Tax Deducted at Source (TDS) of 31.20% applies to these winnings.
Income Tax @ 31.20% on Winnings from such TV Shows and Online Winnings.
Income earned from winning KBC Game Show, Big Boss, Nach Baliye, India's Got Talent, Fear Factor and other game shows is taxable at a flat rate of 30%.
TDS is @ 31.20%
Income is included under head Income from Other sources