I was in Sainsbury's in Harlow earlier and I picked an Accessory Agents Sky and sky+ remote for £1.00. Cant go wrong for that price. It was in with all of the TV's, it had a normal shelf edge label so I assume it is nationwide.
They also had some other Accessory Agents bits going cheap, They had a 4 in 1 remote for £1 and a 3m HDMI Cable for £1.49.
Its worth having a look in your local.