02/24/2013 (08:00PM - 08:30PM) (Sunday) : Nick Lachey GUEST STARS -- This week, Betty White gets advice on starting a successful boy band from Nick Lachey, who also discusses his "celebritot" baby, while her merry posse of senior pranksters is on the streets pulling pranks on the younger generation. A senior tries to enforce a "height requirement" at a basketball game arena to make sure ticket holders are tall enough to attend the game, a man tickles a stranger with a large feather, and a prankster asks for help reading her husband's R-rated grocery list."205 "02/24/2013 (08:30PM - 09:00PM) (Sunday) : "BIGGEST LOSER" TRAINER Bob Harper GUEST STARS -- This week, guest star Bob Harper joins the fun with seven-time Emmy Award winner Betty White and her posse of senior pranksters. Sassy senior citizens pull shockingly hilarious pranks on the younger generation in this hidden camera show featuring cleverly-crafted comedic stunts, candid moments and priceless reactions captured by hidden camera. As star of the series, Betty White stars in funny sketches between the pranks and shares her comicAl Pearls of wisdom.