Who Wants to Be a Millionaire - Season 4 (2009)

The series returns to prime time, marking the 10th anniversary of its debut, with changes to the show including time limits on the questions; replacing the 50/50 lifeline with a "double dip" where the contestant can offer two different answers; and an additional "ask the expert" lifeline with a guest celebrity expert. Also, a celebrity appears on each episode to answer a single question to win $50,000 for charity. Among the regular contestants, Brad Abbey wins $1,000, and Rob Placek wins $25,000. Gary Cousins answers the $2,000 question and will continue in the hot ...

Gary Cousins chooses to stop and leave with $4,000, and Michelle Ribeiro chooses to stop and leave with $16,000. Another contestant, John Zimcosky, will continue on the next episode after answering the $25,000 question. Guest expert George Stephanopoulos is unable to answer a question about "Seinfeld," but has no trouble with a question about the subject of the McCain-Feingold Act (campaign finance reform). Celebrity contestant Vanessa Williams wins $50,000 for the The Young Performing Arts Project.

Returning contestant John Zimcosky ends his run in the Hot Seat with $25,000. The other regular contestants are Brian Slope, who walks away with $50,000, and Anthony Sloan, who answers the $16,000 question and will return on the next episode. Celebrity contestant Sherri Shepherd wins $50,000 for the March of Dimes. Expert Wolf Blitzer is called on for questions about which R&B group recorded the Obama tribute "Solid (as Barack)" and the animal pictured on the cover of a book about foie gras.