Funnily enough I've been looking for a track that Mike Allen used to play in the background while reading out his chart too. Your definition of it in the opening post sounds a bit like the one I'm after but it's not The Russell Brothers as I've just found the one I'm after is Gaudi Park by Tangerine Dream (1985). As you can guess it's not an electro track but more of an ambient track with nice chord melody over the top.
Have a listen if you can find it as it may ring some bells (it certainly has echo effects in it)