This Way Up for Saturday 21 March 2009 This Way Up

Peter Griffin on the cables needed to get a sharp picture onto hi-def TVs. But does it make any difference if you choose gold-plated or super-cheap?

We hit the forecourt with retail analyst Martin Craig. Three-quarters of service stations' profits have nothing to do with petrol sales!

The big auto-makers are trying to find a workable battery to power the electric car. NPR's Frank Langfitt investigates.

Dr Gerbrand Ceder of MIT's developed a battery that can recharge in a few seconds.

Our US correspondent Sarah di Gregorio's just visited the largest foie gras farm in the US. Plus selling New York tap water to New Yorkers.

Puzzle pundit Matt Gaffney on KenKen, the latest number puzzle trying to rival Sudoku.

Stephen Baker's book"The Numerati"is about the maths and marketing wizards dissecting our digital data trails.

The toys that could be doing permanent damage to little ears.

This Way Up for Saturday 21 March 2009