Brand new series 5 starts 28th August 9pm
Series 4 continues every Tuesday 9pm
Brand new series 3 starts 11th September 10pm
Jane Rizzoli & Maura Isles are on the hunt for some of Boston's most notorious murderers.
Catch Jim Longworth in the UK premiere of Series 4 on Tuesdays at 9pm.
Are you a loyal Castle viewer? Take our quick-fire quiz to find out how much you know.
How closely do you watch Rizzoli and Isles? Take our quiz to test your detective skills.
Here's a full list of recent prize winners on alibi.