system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is there a 4-5 second delay when newscasters on TV talk to each other in different locations but I can speak to somebody on the phone far away with no delay at all?
gpt
This is because they use satellite connections instead of terrestrial connections (which most phone and internet connections use).

The advantage of satellite connections is that they are available all over the world (even in extremely remote areas) and, if you're willing to pay enough, you can get dedicated high-bandwidth connectivity - enough to allow high performance streaming of High Definition video.

If you use a phone or internet based connection, you are severely limited in bandwidth availability and can only make the call in locations where service is offered by your home network (or a partner network which your home network has a roaming agreement with).

The disadvantage of satellite connections, of course, is the latency (delay). Communications can only travel as fast as the speed of light and satellite connections have to cover a lot of distance. Firstly, the TV station sends the audio/video via terrestrial fiber connections to a satellite uplink station on the ground, then the uplink station sends the audio/video to a satellite far above the earth and this gets beamed back down to the location of the reporter which then receives it via a satellite antenna/dish. 

After hearing the question, the reporter starts responding and then their audio/video gets sent up to the satellite and down to the ground station where it finally gets sent back to the TV station over fiber connections. This results in a large delay. There may also be additional delays added as the result of things like jitter buffering (used to mitigate problems with packet timing/delivery).