Broadcast Outage: We're investigating a broadcast transmission failure affecting the San Luis Valley from Antonito in the south to Salida in the north. We're working to resolve this issue. You can stream our live broadcast HERE or via the RMPBS+ App.

Stream live and on-demand content now on our new app:
RMPBS+

Help tell more stories in 2026 - make a year-end gift!

Give Now
Cyberchase show's poster
TV-Y
Cyberchase

Lost My Marbles

Cyberchase, the award-winning, research-based adventure series, helps kids develop strong math and problem-solving skills. Ages: 6-11 Educational Goal: Mathematics

RMPBS Passport

Please log in to your PBS Passport account to watch this video

Become a Member

Lost My Marbles

Season 1 Episode 1 | 27m 0s | CC

A day at the library turns into a cyberventure when Jackie, Matt, and Inez learn that Hacker has kidnapped Dr. Marbles, the only person who can save Motherboard from an evil virus! The team learns to use a map as a mathematical tool as they navigate across a cyber island in search of Marbles...then try to escape before a huge earthquake turns the island inside out!

Cyberchase

Watch more episodes

See more
See more

Subscribe to Our Newsletters

Get trusted Colorado stories, programs, and events from Rocky Mountain PBS straight to your inbox.

Set Your Preferences >