Okay, imagine that you are playing with toys in your room and your friend wants to play too. You want to show your friend what you are doing, but they are in a different room. You decide to use a toy walkie-talkie to talk to your friend and let them know what you are doing.
Now, if your walkie-talkie is working properly, your friend will be able to hear everything you say clearly. But if your walkie-talkie is not very good, your friend might only hear some of what you say or it might be hard to understand.
Broadcast quality is kind of like your walkie-talkie. It has to do with how good the equipment is that is used to send and receive messages or videos over TV, radio, or the internet. Just like the walkie-talkie, if the equipment is really good, people will be able to see and hear everything clearly. But if it is not very good, the video or audio might not be clear, and people might have a hard time understanding it.
When people talk about broadcast quality, they are usually talking about things like the resolution and clarity of the video, the quality of the sound, and how well the video or audio is transmitted to the audience. So, if something has "broadcast quality" it means that it is really good and clear, and people can easily understand and enjoy it.