Inside the Mind of Liza Minnelli

10.35pm, Channel 4

Sarky biography of the Cabaret star and daughter of Judy Garland, asking if perhaps she is just an ickle teeny-weeny bit like her mum.

What - because she is a top-class performer, Hollywood A-lister, has been married to a bisexual chap and has had "issues" with substance abuse? Surely not.