Ryan Seacrestis excited to be the new host ofWheel of Fortuneafter Pat Sajakended a four-decade runas host.

Seacrest chronicled his first day of filming the game show and showed how he got familiar with the set.

My hearts pounding, Seacrest says in the video he posted on Instagram.

Ryan Seacrest, host of ‘Wheel of Fortune’

Ryan Seacrest, host of ‘Wheel of Fortune’Disney/Eric McCandless/Getty Images/SPT

TheAmerican Idolhost gave the wheel a spin to hear the iconic sound as it went round and round.

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I slept OK, but still very excited for the alarm to go off.

Pat, congratulations on an incredible run withWheel of Fortune!

Youve set the standard for hosts everywhere, and this marks the end of an era.

Best wishes for all your future endeavors!

On his final day as host, Sajakexpressed his gratitude for the support from viewersthroughout his tenure.

I have a few thanks and acknowledgments before I go.

And I want to start with all of you watching out there, Sajak said on the show.

Nothing embarrassing, I hope.

But gradually it became more than that.