WTTW's Chicago Tonight highlights a new study, warning that teens' texting slang is starting to affect their formal writing. True or false? A trip to a local high school provides some answers. Want to watch more segments from Chicago Tonight? Visit http://www.wttw.com/chicagotonight
Source: wttw, chicago tonight

Illini football team's head coach Ron Zook sings the 7th inning stretch at Wrigley Field.

(00:44) | Source: WGN

From the description on YouTube: "An acoustic performance of the song "Here," written and performed by Chicago artist, Mer. Listen to more Mer at merplay.com. "

(02:54) | Source: YouTube

WTTW's Friday Night with John Callaway welcomes controversial former host of Score Sports Radio Mike North for a freewheeling and provocative interview. Want to watch more segments from Friday Night with John Callaway? Visit http://www.wttw.com/chicagotonight
Source: wttw, chicago tonight

Scenes from the second annual Cornhole Classic held at Chicago's Soldier Field. More than 600 people competed for cash prizes.

(01:49) | Source: Chicago Tribune

WTTW's Chicago Tonight asks Check, Please! host Alpana Singh: why are wine and cheese such a perfect pair? The answer to that question, and lots more. Want to watch more segments from Chicago Tonight? Visit http://www.wttw.com/chicagotonight
(06:58) | Source: wttw, chicago tonight

WTTW's Chicago Tonight introduces you to a newly-minted local member of the U.S. Olympic diving team: Deerfield’s Christina Loukas. Elizabeth Brackett gets reaction from her family, owners of the Cubby Bear. Want to watch more segments from Chicago Tonight? Visit http://www.wttw.com/chicagotonight
(04:55) | Source: wttw, chicago tonight

WTTW's Chicago Tonight introduces us to the latest 100 words and phrases that have made it into the 2008 dictionary. Lexicographer Erin McKean dissects some of them. Want to watch more segments from Chicago Tonight? Visit http://www.wttw.com/chicagotonight
(14:38) | Source: wttw, chicago tonight