Strange Lines on Footage

[Stephen Lubin]

Could anyone let me know what these lines are on the footage? It's starting to pop up on many of my clips. It becomes more noticeable when I brighten the image up as I shot with only available light. Any info or ideas would be greatly appreciated!!!

 

[Andre W.]

when was the last time that you did a blackshade? After the camera warms up, bump your ISO all the way up to max. Turn on Video False Color.... you should have an even noise pattern going across the whole screen. If you see banding or one side having a denser noise pattern than the other, then it would be advised to do a Black Shade. That could help resolve this situation for future shooting needs.