The block was produced under a time-lease agreement with Discovery Kids, and features a mixture of live-action and animated series originated on the cable network that met educational programming requirements defined by the Federal Communications Commission.

[3][4] By 2001, TNBC had been undergoing from declining viewership; according to Nielsen Media Research, the block was registering a median viewer age of 41.

Girls, a child-oriented spin-off of the TLC home renovation reality show Trading Spaces joined the lineup.

In March 2006, Discovery declined to renew its contract with NBC for its Saturday morning block, citing a desire to focus its children's programming efforts exclusively on the Discovery Kids cable channel;[10] in May of that year, NBC and Ion Media Networks unveiled a joint venture with Canada-based Corus Entertainment, Scholastic and Classic Media known as Qubo, which would aim to provide educational programming aimed at children between the ages of 4 and 8.

The Qubo endeavor included a three-hour Saturday morning block on the network, which replaced Discovery Kids on NBC on September 9, 2006.