It's easy to make a TV program that appears pretty convincing if you're only presenting one side and you're not trying to present a balanced case for and against.
I certainly don't see anything too compelling from what I read about it.
You have to be very carefull with some of this stuff - a number of people have been 'regressed' to a past life under hypnosis. Unfortunately in that state if pressured to remember things that they cannot some people will invent things under hypnosis and then truely believe them when they come round.
I note that the "child psycologist" Jim Tucker on the program has a habit of publishing in rather "Ghostbustery" journals like "The Journal of Near-Death Studies" and "the International Journal of Parapsychology" so I'd not exactly call him impartial.
Especially as he has a book and website devoted to this sort of thing
http://www.lifebeforelife.com/
I think I'll take it with a rather large pich of salt.