Shark Tank (8pm, ABC) - Someone actually pitches a t-shirt product with inspirational messages that become visible when the wearer perspires. Hoping at least one of the messages is: "Hello. Is it me you're looking for?"
Who Do You Think You Are (8pm, NBC) - This episode is a repeat, but it's a good one, and since I'm declaring it unofficially "Lionel Richie Night" on Happiness is a Warm TV, I'm asking that you watch. Lionel Richie charts his family history by focusing on his grandmother's ancestry.
ACM Presents: Lionel Richie and Friends in Concert (9pm, CBS) - The great Lionel Richie performs duets of his hits with Kenny Chesney, Tim McGraw, and Kenny Rogers. Other country stars -- like Jason Aldean and Lady Antebellum -- perform Richie songs on their own.
Fairly Legal (9pm, USA) - Kate tries to help a bankrupt client, who is not Lionel Richie, and who is also dealing with a drug-dealer tenant.
Also tonight, Budget Blinds CEO Chad Hallock works undercover at his window-coverings company on CBS's "Undercover Boss" at 8 p.m. You know where budget blinds look really good? In a Brick House.