Live KH specifies a maximum bitrate (bits transferred per second of video) of 3,000 kbps, but most congregations stream using much less. While a higher bitrate can result in higher quality video, it reduces the number of potential viewers, as some computers or Internet connections cannot handle higher bitrate video. Moreover, a higher bitrate does not always result in better image quality.
There are good reasons to use a lower bitrate:
A lower bitrate often means a more stable connection, which translates into fewer problems for viewers. The higher the bitrate, the faster and more stable your connection must be. A video stream sends data continuously, so consistency and stability matter more than how fast the connection can be in short bursts.
The less movement there is in your broadcast, the lower the bitrate required for it to look good. You can stream at 1500 kbps and still display a great looking, 720p broadcast.