11/20/2013 05:24 am ET Updated Nov 20, 2013

Meredith Vieira Falls Out Of Her Chair Giggling On 'Watch What Happens: Live' (VIDEO)

Meredith Vieira made her "Watch What Happens: Live" debut and ... it looked like she was enjoying the open bar a little too much. She was definitely channeling the fourth hour of "Today." Fellow guest Jesse Tyler Ferguson is a funny guy, but Vieira's giggles went above and beyond appreciating his wit.

In fact, it was all so crazy that we're pretty sure we had no idea what was going on or what they were talking about for at least ten minutes. All we know is that at one point Vieira wound up on the floor, and she did a dead-on impression of a "Woo!-Girl" holding her wine tumbler. Whatever was happening, we couldn't turn our eyes away ... or get the smile off of our faces.

Vieira is just as much fun on Twitter. The former "Today" anchor admitted that she's still learning how to Tweet after sending a variety of odd messages last month, but what's there to learn. Odd is fun and memorable, too! And Vieira is going to need to stand out as she prepares to launch her new, syndicated talk show in 2014. She should probably master staying in her chair by then, though.

Tune in to "Watch What Happens: Live" every Sunday through Thursday at 11 p.m. EST on Bravo.

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