Why do some celebrities attend the New Year's Eve concerts on multiple TV channels?

Because it's not live on the same day, it's all recorded programs, so you can attend a lot of programs at the same time. However, the entire program is compact, well-structured, well-chosen, focused and concise, and it is also possible to control the length of the program as needed, and it is easy to re-insert. It is a kind of program production and broadcasting method often used by radio and television departments.

In the work of radio and television, a variety of programs by recording and video production after the broadcast mode is relative to the live broadcast. Recording and videotaping take place on location, in studios and studios, and then the recorded content is selected, edited, explained and synthesized to form a complete program, which is then broadcast.

Expanded Information:

Recording System - Single Stream Recording Mode

Single stream recording mode refers to the multi-channel video is switched or superimposed to become a single picture. The live end displays the integrated single-channel video screen. The screen content not only supports the switching display of multi-channel video and VGA signals, but also supports multiple display modes such as Picture-in-Picture, Single Stream, and Multi-Screen, which can be seamlessly switched between multiple display modes.

Recording System-Multistream Recording Mode

Multistream recording mode refers to the synchronized recording of multi-channel video and VGA signals to generate an independent file. Each recorded video is complete and any of them can be exported at a later stage through editing software. There is no picture overlay between videos, so the most complete information is retained.