Roger Federer appears alongside Elmo in a new Super Bowl commercial for the running shoe brand, On, that has them debating which letters are actually on the sneaker.

Watch as Elmo sits in an umpire's chair and debates the two letters found on Federer's On-branded sneakers: Is it 'Q' and 'C' or 'O' and 'N'?

During each episode, Elmo takes viewers on thrilling explorations. Watch all your favourite ABC programs on ABC iview. More from ABC We acknowledge Aboriginal and Torres Strait Islander peoples as the ...

As a kid, you likely spent a lot of time learning your ABCs from characters like Cookie Monster, Big Bird, Elmo, and Oscar the Grouch. "Sesame Street" has been on the air since 1969, and has ...

No one is more excited than Elmo himself. “There’s a lot to learn from music — yeah, timing and harmonies and melody and different styles and different cultures,” the 3 1/2-year-old ...

The high-spirited, high-pitched, little red monster, Elmo and his friends Smartie, Mr Noodle, Ms. Noodle, Schmoodle and Grover explore the world around them. ABC iview Home Watch all your favourite ...