Link 16 was developed before UAVs / streaming video ever became mainstream like it is today.
There are several different transmission paths to Link 16, there is Link 16 LOS
- which uses UHF
frequencies, it is limited to the horizon. You can also set up a Link 16 network through a satellite over UHF
satcom - it's still UHF
but it is sent up to a satellite - so that units over the horizon can participate in the Link 16 network - the limitation being that not all units may be able to access a satellite - if it can, it may have its satellite receiver used for a different purpose - most older ships have a single DAMA - which combine 4 radio/data circuits into one UHF
SATCOM radio to uplink to a satellite - so the most number of satellite voice/data links (one of which will be a Link 16 net if it chooses) they can have up on satellite at any one time is 4. The AEGIS, carriers, command ships have dual DAMA units so can be up on 8 satellite voice/data links at a time. You get voice, data, and a rudimentary Zircon "chat" (before today's widely used Microsoft Chat.) over Link 16.
Streaming video and "internet chat rooms" that are in operation centers these days use leased bandwidth off commercial satellites using commercial off the shelf equipment - it's not a specifically designed military system. Generally for major warships it's a T1 line up to a satellite. smaller warships timeshare their "internet" time on a smaller pipe. Carriers and command ships will have two T1 lines up to a satellite - one for the "secure" side data and one for general "goofing off / Amazon.com/ebay" internet surfing.
Bonus animus sit, ab experientia. Quod salvatum fuerit de malis usu venit judicium.