5 NEED-TO-KNOWS TODAY

1 to watch

What We Do In The Shadows, BBC Two,

10.20pm: The vampires try to survive without Guillermo. Last in series.

1 to know...

The global population may peak at around 9.7 billion in 2064 before falling to 8.8bn by the end of the century.

1 to answer

What was the original title for the hit sitcom Dad’s Army? For the answer see right.

Birthdays

Lorraine Chase (above), actress,69; Stewart Copeland, rock musician (The Police), 68; Michael Flatley, dancer, 62.

1 to listen to

The Film Programme, BBC Radio 4, 4pm: Looking at the latest cinema releases, DVDs and films on TV.