THE couple behind one of the most enduring and popular stars of the TV show Robot Wars will reveal the secrets of their success this weekend.

FireStorm has been a regular fixture on Robot Wars for the past four years.

It was built by Graham Bone and Hazel Heslop, from Langley Moor, near Durham, who also announced their engagement on the show.

They will show off the robot's latest incarnation, FireStorm5, at the Discovery Museum, in Newcastle, at 11am on Saturday.

Visitors can see it in action and there will be demonstrations for would-be robot creators to find out how to build a machine. Admission is free.