Personally, I applaud Richard's efforts here.
Not every skeptical appearance has to be about unequivocally debunking psychics or other purveyors of woo. Randi's various shows and demonstrations are a good example...yes, he debunked a number of people quite soundly, but the very nature of his shows meant that A) a lot of woos would simply refuse to appear on his show, and B) the audience that he attracts will tend to be an audience that is already more skeptical.
Richard is working in a different medium. He won't be (I presume) actually debunking these people and showing them up as frauds. But he'll be raising legitimate questions, raising obvious problems, etc. He'll have the chance to appear with people who would never dare to appear with James Randi. And he'll be reaching an audience many of whom would never watch James Randi.
If by his presence on this show, he's able to simply get some small portion of the viewers questioning the abilities of the performers, or looking at the performances more critically, he'll have accomplished something important.
Even more importantly, perhaps, he'll be gaining significantly higher celebrity status; he'll be a recognized face, a recognized name. He'll have many more opportunities to do other appearances at which he'll be able to present his own opinions and beliefs more clearly than might be allowed on this particular TV show. He'll become a defacto spokesman for skepticism, and have the opportunity to reach far, far more people than he does at present.
In the process of doing this, he's also going to be subjecting himself to all sorts of criticism and abuse. Both from the woo community who will condemn him for being closed-minded, and from those in the skeptical community who will berate him for "not doing enough".
Come on, people. The man's already done more to promote skepticism than the majority of members here; and this TV show is going to give him the opportunity to do much more (if not on the TV show itself, then in the many new opportunities he'll get afterwards).
I say kudos to Richard for doing this. I wish that there were more skeptics actually getting involved (and particularly trying to reach out somewhat to the woo communities), rather than sitting on their posteriors and ruminating online with other people who already pretty much believe the same things they do.
Its people like Richard who are going to help the skeptical movement grow and develop.