Talk about Christopher Knight here.

To learn more about this contestant, head over to the Celebrity Circus site.

watching him bite the dust in the commericals makes me laugh everytime. I proberly won't watch it really, but I love the laugh it gives in the promos

I hope its got funny moments like that in all the shows! There has to be some good bloopers, especially in the early episodes. I'm tuning in on Wednesday!

From NBC Universal Media Village

Christopher Knight
Celebrity Contestant

Celebrity Circus
Wednesdays on NBC (9-10 p.m. ET) beginning June 18;
Series Premiere: June 11 (9:30-11 p.m. ET)

Christopher Knight currently stars on NBC’s daring new cirque reality show “Celebrity Circus.”

Once and forever a Brady, Knight met life as a child actor, starring as Peter Brady in the TV classic hit show “The Brady Bunch.” A reluctant icon, Knight has focused his adult years on interests beyond the entertainment industry, particularly the corporate world of computers and high technology. Yet, due to the flourishing legacy of all things Brady, Knight’s successful endeavors beyond entertainment exist in peaceful subordination to his portrayal of Peter and his arguably estimable contribution to American pop culture. In 2003 Knight returned to his entertainment roots and is now once again re-established as an actor, host, spokesperson and erstwhile entertainment figure.

Knight has starred or otherwise participated in the plethora of periodic Brady films, television movies, series, gatherings, discussions and retrospectives. Knight also has exploited his status as an entertainment figure by availing himself to several projects as a host and spokesperson, including projects such as the American Counseling Association’s 2002 & 2003 “Healthy Skin, Healthy Outlook” campaign that went on to received the Gold Triangle Award both years Knight served as spokesperson. Knight was also privileged to be the spokesperson for the National Consumer League’s “AD/HD Campaign” speaking in Washington DC at the National Press Club on the sensitive subject of AD/HD, as he himself is an adult with ADD. Known as a person of fitness, Christopher was also brought on as the spokesman for a popular personal workout product, Ab Lounge XL in 2006.

In 2003, Knight was asked to host a segment on the series “TV Road Trip.” When the series was optioned for a second cycle, Knight was offered to host the series again. Knight then signed up for the celebrity version of “Body Challenge,” which debuted in the fall of 2004. Soon after, Knight took part in the fourth season of the hit “Surreal Life,” which led to a high-profile romance with co-star and “America’s Next Top Model Winner” Adrianne Curry. Their life as a couple was chronicled in the reality series, “My Fair Brady” (which ended in an unforgettable marriage proposal from Knight), and its sequels, “My Fair Brady: We’re Getting Married!” and “My Fair Brady, Maybe Baby.”

Over the last couple of years, Knight's on-screen endeavors included special guest appearances on such hit television shows as “Dirt,” “That 70’s Show,” “Blue Collar TV,” and “Less Than Perfect” among others. Knight has also starred as the lead in the independent film “Light Years Away” and the horror thriller “Fallen Angels,” both released in late 2007. Last, but certainly not least, Knight has been working on several projects with his now wife, model and TV personality Adrianne Curry.

I love Christopher Knight. He reminds me of my husband. My husband and I have the same age difference has Chris and Adrianne. There is a lot of things I can say about him, but my daughter is waking up and my husband just got home so I can't...lol. GO CHRIS!!! I hope he wins...

I thought Chris was undermarked. I was very impressed with him - he and Stacey were my two favourites!

I was also impressed with how classy he stayed when he was so obviously undermarked. Blu, here's the example you should have followed.

I hope fans come through for him.

Chris Knight is awesome. The marks he received on the first episode were too low for such a great performance, yet he handled it like a complete gentleman.

He's got my vote for every episode!

GO CHRIS!!!

Chris is a class act. He's had to take on more performance-centric tasks because of his injury. When the judges gave him undeserved low marks, he was a class act. I hope he stays around because he puts his heart and soul into his performances which the judges don't seem to take into consideration.

I think Christopher Knight is being highly underscored.He walked a tightrope with a broken arm and his fireclown act was charismatic and brave.He looks like a pro when he's out there and has a great attitude-despite the judges awful decisions.You could here the crowd booing over the judges low score cards.

He was robbed! His fire clown act deserved 8's across the board. My son and I taped the show and watched it tonight. While all of the contestants deserve kudos for doing this stuff, he definitely did NOT get the score he deserved. Given the fact he broke his arm and gamely continued and did as well as he has, he was lowballed. K. Nuff said!

I think Christopher Knight is really cool.I've liked him on all his shows he's been on and he is truely a class act:)It's amaizing he's doing all this with a broken arm and almost 51years old.I think he still has that t.v. charm and like the lady judge said after his bungee trapeeze act..that his performances put a smile to my face:)I hope he keeps it up because he's always got my vote.Plus he's got alot of competition to beat and so far he's been really good at performing.My hats off too him:)he's been underscored no doubt but he always bounces back without complaining and while giving his all.

I totally agree... and that Louie is the lowest of the low!

If I were Chris's wife, I would SO drop kick Lou Lou's arshe!

Love Chris Knight! I have watched him grow up and as we are close to the same age (I'm a bit older) I am awed by the fact that he's shown the world that..."old guys rock!" Chris & Adrienne are my two favorites. Love you guys! Having broken my wrist in three places, I know how you worked through the pain. I can't wait for Mr. and Mrs. Knight to have a little knight! As far as your stint on the Celebrity Circus...you should have won! You would have won! You won my heart, Chris! My son is in Afghanistan until next year. When he comes home, he's getting married...in Tennessee in August. You and Adrienne are invited!

Chris was doing really well on the show until his injury forced him out of the competion. I think he would've definately had a chance of winning if he didn't get injured. I'm glad he's ok though, he took a nasty fall