"The challenge in doing a new show is finding the truth in that show," said Probst, who added that he felt he could "contribute to the conversation" after becoming a husband and stepfather. "I feel comfortable in doing the show I want to do. I have no idea if anyone will watch it, but that's why you put it on the air."
For Harvey, his truth is humor.
"I've been in the funny business for a long time," said the veteran comedian, whose show will air in top markets on NBC stations, back to back with "The Ellen Degeneres Show." "In terms of funny, you can't really top what we're going to do in daytime. The only person that's funny is Ellen, and I'm going to be her lead-in, so until Ellen comes on, I'm the funniest person on TV."
"Steve Harvey," which is modeled after the bestselling author's books that offer women advice on relationships and dating from a male perspective, launched his show last week to solid ratings. But it's too soon to know whether they'll last, say analysts, with other newcomers coming Monday along with premieres of "Dr. Phil," "Ellen" and "Dr. Oz."
Although the pressure to land boffo numbers has eased over the years, the chances for long-term staying power remain tough.