We've got our first look at the new season of "Sesame Street," since the series was acquired by HBO for a 35-episode season -- up from the usual 18 episodes -- this past summer. The debut trailer for the series' 46th season offers a glimpse at the show's new look, and some of the guest stars we can expect to see, including Jon Hamm and Tina Fey.

Along with a full new season of "Sesame Street," HBO previously announced they'll launch a spin-off series.

HBO's version of "Sesame Street" entails a new 30-minute episode format, which will be available on the pay cable network as of January 16. The new episodes, as well as the classics, will be accessible for streaming on HBO's digital apps and HBOkids.com.