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Sheldon makes friends with an upperclassman who introduces him to a new field of science. Also, Mary and George disagree on how to handle Sheldon's blossoming social life. (Repeat).

The guys buy a time-machine prop from a '60s movie and Penny ridicules their preoccupation with toys, which forces Leonard to reexamine his life and maturity. Mike: Andrew Walker. (Repeat).

Charlie finally tells Alan that he ended it with Mia because she wanted Alan and Jake to move out. Meanwhile, Charlie has problems with his neighbor, rocker Steven Tyler (who appears in a cameo). (Repeat).

In the third-season finale, Boyd enters a mutton-busting competition at a rodeo. Elsewhere, Eve and her boyfriend don't see eye-to-eye on her prom attire. (Repeat).

Adam, who's embarrassed by his changing body, is desperate to get out of swimming in gym class; and Erica tries to create her identity at school by starting a club that, to her dismay, Barry joins. (Repeat).

Larry King Investigates Prostate Supplements to determine which products work and which ones don't work and why. A must watch for all men over 45.

Larry King Investigates Prostate Supplements to determine which products work and which ones don't work and why. A must watch for all men over 45.

This bi-weekly show focuses on the Hispanic community in Chicago, and features news and entertainment.

Chicago's weekend morning news with the latest in news, sports, and weather. (Live).

Chicago's weekend morning news with the latest in news, sports, and weather. (Live).

Chicago's weekend morning news with the latest in news, sports, and weather. (Live).

Georgia Tech at North Carolina. From Kenan Stadium. (Live).

(New).

The Drive For the Cure 250 from Charlotte Motor Speedway Road Course. (Live).

Chicago's weekend evening news with the latest in local news, sports, and weather. (Live).

All-new special on the contributions of Chicago area Latinos featured throughout Hispanic Heritage Month on WGN News. Lourdes Duarte hosts.

The next generation of WWE Superstars head to St. Louis for an epic live event featuring a special guest appearance by WWE legend Randy Orton. (Repeat).

Chicago's evening news with the latest local stories, sports, and weather. (Live).

Chicago's weekend news and sports roundup on WGN. (Live).

The latest sports news, highlights and analysis from Chicago's Very Own WGN Sports team. (Live).

When Jake takes down his Harry Potter posters and replaces them with pictures of women, Alan feels like he's losing his little boy and has a midlife crisis. Rodney: Frankie Jay Allison. Detective: Ben Hermes. Kandi: April Bowlby. (Repeat).

Alan befriends a single gay father (Matt Roth), which prompts Alan and Charlie to reexamine their sexual identities. Meanwhile, Jake develops a crush on the man's daughter (Kay Panabaker). Dr. Freeman: Jayne Lynch. (Repeat).

A married father of three tries to maintain his manliness in a world increasingly dominated by women.

A married father of three tries to maintain his manliness in a world increasingly dominated by women.

The allure of nostalgia. Also, is the American mall becoming a relic?

Decorating your entire home has never been easier with the brand new Star Shower Ultra 9 laser light show! Now with 9 different patterns, your home will dazzle with thousands of bright colorful stars in just minutes!

Every 3 seconds an American's identity is stolen. Just how safe is your 401k? Your bank account? Your home? Your credit? Crime Reporter Tom Morris Jr. investigates the identity theft epidemic. Find out how you can help protect yourself with LifeLock.

Kills 99% of Bacteria, Viruses, and Germs with Steam! The 5-in-1 Lightweight, Fast, Powerful, And Completely Chemical Free Steam Cleaner! Lift and remove dirt and stains all around the home!

A series on gospel music.

Chicago's weekend morning news with the latest in news, sports, and weather. (Live).

Chicago's weekend morning news with the latest in news, sports, and weather. (Live).

A weekly political roundup.

Mass is celebrated.

Religious Programming.

Meeting the swamp creatures in Florida's Everglades, including snakes and alligators. (Repeat).

Jack Hanna travels the world studying animals in both sanctuaries and their natural habitats. (Repeat).

Aetna licensed agents can simplify Medicare and help you choose coverage that's right for you!

Perfectly sears & shreds meat and stirs soups, stews, & risotto for consistently delicious, hassle-free meals 60% faster with our stirmax technology.

Connie Craig-Carrol & Founder Ken Meares investigates Omega XL, the ultimate all natural solution for joint pain from inflammation.

Take a behind-the-scenes look at award-winning actor and producer, Blair Underwood, on pain and the effects of inflammation on the body.

A trip to South Africa includes an encounter with a baboon troop in Cape Town; and observing a colony of African penguins at the Cape of Good Hope. (Repeat).

Jack visits Ecuador's highlands, stopping at a colorful Ecuadorian market and a rehabilitation center for injured and orphaned birds of prey, such as owls, eagles and condors. (Repeat).

Featuring a variety of politicians and newsmakers discussing the latest political news from the nation's capital. The program also features a panel of guest commentators offering insight and analysis of the week's key stories.

Chicago's weekend evening news with the latest in local news, sports, and weather. (Live).

One off 90 minute special airing 7th January 2011 Hosted by Jonathan Ross, where magicians Penn Jillette and Teller give several British magicians the chance to fool them, with a prize of the opportunity to fly to Las Vegas and open for the duo. (Repeat).