HD underwater cameras are good in some super clear lakes, but having the versatility my 5.0 Revolution Pro has is unparalleled.
In any lake, infrared can be problematic if you have anything suspended in the water. It’s much like putting your brights on in a downpour. Even buddies who put suspended lights on their cameras saw the same particles suspended in the water blocking the view.
My camera has a magnetic mounted USB charger and has an internally upgradeable DVR with an SD card, and I never see feedback when plugged into the icehouse TV–charging or otherwise.
It’s either a marcum thing, or an unshielded wire thing.