The live show only lasts for twenty days. However, a variety show usually needs to air for three months.
Twenty days is hardly enough to create lasting value before being abruptly cut off, which is an unprofitable deal for a variety show.
Luckily, they had invited seven guests. Including the special guests, there were ten in total.
The live broadcast couldn't possibly be on all the time. Even if it was broadcast, with so many guests, the camera could only focus on one group at most. No matter how evenly you try to distribute it, there's just not enough screen time to go around.
So, the overall show still lasts three months, but the later two months rely on video editing by the production team.