Thank Your Lucky Stars  was a British television pop music show made by ABC Television, and broadcast on ITV from 1961 to 1966.  Of all the show’s presenters, Brian Matthew is perhaps the best remembered.  He is still broadcasting on radio for the BBC (May 2016).  Many of the top bands performed on it, and for millions of British teenagers it was essential viewing.  As well as featuring British artists, it often included American guest stars.  It would appear from the surviving footage that the bands mimed their latest 45.  Occasionally a band was allowed to do two numbers (possibly the A-side and B-side sides of the latest single); bands of a higher status such as The Beatles or The Rolling Stones would play four numbers.  (More from Wikipedia)