What to WATCH.
The Plot to Bring Down Britain's Planes (C4, 9pm) If you ever moan about the stringent security measures now imposed at UK airports and the confiscation of that bottle of eau de cologne you wanted to take home in your handbag for Aunty Mary, then watch this. A chilling documentary of the sort to make future travellers think twice, it details the investigation by UK and USA security services which foiled a plot by terrorists to take liquid bombs on board transatlantic planes in 2006. It they had blown up, they would have potentially slaughtered more than 2,000 people. Fortunately the services succeeded in stopping that particular nightmare, though their behind the scenes race to prevent further outrages goes on.
Grandma's House(BBC2, 10pm) Those who miss Simon Amstell presenting Never Mind the Buzzcocks will be pleased this sitcom is back on TV. Others may feel it needs more buzz.