In the 10 and 20 point rounds, players had to wait until the host had finished the reading the question to buzz in. This rule was known as the "no preemptive buzzing" (NPB) rule. In the radio show, teams buzzing in early forfeited their right to answer the question. The questions were given in categories of 3 or 4 questions, such as science or spelling, with the last 20 point category being a viewer-submitted questions category, which was general knowledge. There was no penalty for an incorrect response in these rounds, and if the first team to buzz answered incorrectly, their opponents could then buzz in and provide an answer. These rounds were shortened each season to increase the importance of the Lightning Round. Before the 20 point round started, the host conducted brief interviews with the team captains.