Dermot and Dave's Maria Devereux delves into the world of television to bring us the best on the box this week.

Channel 4 have a new series starting @8:30pm this evening - The Secret Lives of Slim People, where Sabrina Grant examines the lives of people to stay trim without trying.

Then on BBC One @9pm, MasterChef returns for its 15th series, as Gregg Wallace and John Torode go in search of a new amateur cooking champ.

First Dates: Valentine's Special airs on Thursday (Valentine's Day) with lots of love surprises in store, and Maria's Movie of the Week is this little gem:

You'll find Righteous Kill on Virgin Media One, Thursday @9pm. De Niro AND Pacino?? Yes please.

Check out Maria's suggestions in full by pressing the play button on screen.