[ADTech]

No, that amp would only increase the noise also. You're may need to either replace the TV set as defective or increase the separation between the antenna and the set so that the antenna isn't picking up its electrical noise.

Before condemning the set, remove any accessories like USB dongles (Chromecast, for example) and any HDMI cables, turning off any external devices for testing. I've seen both of those types of devices that were radiating interference into the VHF bands. If everything is disconnected and turned off, it's probably the set.

Grounding the coax properly may help as it's certainly possible the interference is being picked up by the shield and re-radiating into the center conductor.