However, despite his own misgivings, he is overlooking the advice and for his next BBC series will be
After the success of its previous Lloyd Webber talent shows How Do You Solve a Problem Like Maria? and Any Dream Will Do, BBC One has commissioned this new show to run on Saturday nights next year.
The exact format of the dog auditions has not yet been confirmed, but a BBC source said that "a Barbara Woodhouse-type expert" would be on hand to help with the casting.
The announcement of this new show scotches rumours that Lord Lloyd Webber was about to defect from the BBC to ITV, though it seems that the inclusion of Toto in the programme has been a closely fought contractual issue between Lord Lloyd Webber and the BBC.
"A big sticking point for me, this was," said Lord Lloyd Webber. "This is what the BBC wanted and I had to point out to them that as a cat man, this was not something that I was very happy about at all. The whole thing fills me with extreme concern.
"I might insist on having a cat on the programme, because I think the BBC as a public service broadcaster have got to give equal time in my view to cats."
As well as Toto, Lord Lloyd Webber is looking for a new Dorothy to take on the iconic Judy Garland role from the 1939 film. "I want to play her as a slightly rebellious girl who wants to get away from home," said Lord Lloyd Webber.
For the West End production, Lord Lloyd Webber and lyricist Glenn Slater will also write new songs to complement classics from the original film such as Over the Rainbow. "We are going to write an opening number, and there is no song for the wizard," said Lord Lloyd Webber. "There isn't really anything for the wicked witch - pretty obvious holes."
The new BBC One show will be called simply The Wizard of Oz, and will be the first West End talent show in two years to feature Lord Lloyd Webber.
He hit back at criticisms of his BBC shows, saying that they had created a number of West End stars who now had ongoing careers, including Connie Fisher, Niamh Perry and Jodie Prenger.
His BBC musical talent show series has been criticised by the actor and theatre director Kevin Spacey for being a "13-week promotion" for a musical.
Recent press reports have suggested that Lord Lloyd Webber would take his next TV talent show to ITV, because the BBC's editorial impartiality rules would have forbidden him from using the show to promote his new musical Love Never Dies, the sequel to The Phantom of the Opera, which is expected to open in the West End early next year. However, Lord Lloyd Webber said that it was entirely a scheduling clash, which the BBC had solved by agreeing to run the new TV show later in the year after he finishes promoting Love Never Dies.