1. Copyright issue: The broadcast right of Challenger League in the second season is limited by the copyright owner or the contract period, which leads to the need to take the program off the shelf.
2. Audience feedback and ratings: The audience feedback and ratings of the program will affect the continuation of the program. In the second season, if the audience feedback is not good or the ratings are not up to expectations, the producers will choose to withdraw the program.
3. Program adjustment or revision: TV programs will be adjusted or revised, including changes in content, hosts and rules. It will lead to the adjustment and improvement of the second quarter.