Secrets Of The Krays

ITV, 9pm (not Scot)

BritBox subscribers may already have seen this three-part documentary, which was made available on the service last year. To the rest of us, however, it's brand new and focuses on the rise and fall of Reggie and Ronnie Kray (above), who ruled London's underworld during the 1960s. The opening episode explores their move into more exalted circles after taking over a West End club. ★★★★★