TVLine Items: Jim Parsons Visits iCarly, Voice Judges Court Queen, and More News to Know

The Big Bang Theory‘s Jim Parsons is bringing his personal brand of awesome to Nickelodeon’s iCarly.

The Emmy-winning funnyman will guest star on the tween hit’s fourth season later this year as Caleb, a psych patient who thinks he might actually be from the future — a little Sheldon Cooper-ish (minus the crazy), no? Carly (played by Miranda Cosgrove) and her pals befriend Parsons’ misguided character during a visit to the ward, says EW.com.

Ready for more of today’s TV dish? Well…

• Christina Aguilera, Cee Lo Green, Adam Levine and Blake Shelton will open The Voice‘s first-ever live episode this Tuesday with a Queen medley, including “Bohemian Rhapsody,” “We Will Rock You” and “We Are the Champions.”

• Marv Albert is joining CBS Sports as a play-by-play announcer for The NFL on CBS. Albert will continue in his lead role as play-by-play announcer for TNT’s Thursday night NBA regular-season and playoff coverage.

• Hip-hopper Snoop Dogg is attempting to launch rap music’s answer to American Idol. Sources tell the New York Post that while Oxygen, NBC, and Bravo have passed, E! and MTV have both shown interest in picking up the project.

• HBO has given the green light to Parade’s End, a World War I miniseries starring British actors Rebecca Hall (The Town) and Benedict Cumberbatch (Sherlock). The five-part program, written by Shakespeare in Love Oscar winner Tom Stoppard, tells the story of a complex love triangle, says Deadline.

• HBO has also acquired the rights to air director Cameron Crowe’s The Union, a documentary examining the creative life between rock legend Elton John and his “early career-idol,” Leon Russell. The film is set to bow in January 2012.

• CMT has ordered a new docu-series, The Real Housewives of Texas Texas Women. Per EW.com, the “reality” show is set to follow “a quartet of friends who work in the rodeo and country music scene by day and party by night in the Lone Star State.” How’s that grab ya?

• NBC has tapped former Cash Cab emcee Ben Bailey to host their upcoming trivia-based game show Who’s Still Standing?

Which TVLine Items have you talking today? Hit the comments!