I thought it was a great program myself, being from London and all that!. Strangly I was out Piking with a chap on Saturday who mentioned the Wandle as being an improving river. He has caught Trout from there, lots, and so did many of his mates, this is because it was stocked with Rainbows when he was younger, and every tom, dick and harry was knocking them out on rods, handlines and bamboo canes!!..lol.
Angling times did an article on it too in the summer. They fished that bit where he was standing next to the road with the railings. They took lots of nice Dace and Chub, plus a Brownie of about a pound