We've been experiencing wiggly lines and jumpy pictures when watching live tv. Especially on channel 4 and itv. It's not all the time but doesn't seem weather related.
Welcome to the community
I'm sorry to hear that you're getting a picture disruption on your channels. I'll be happy to help check this out with you.
I have contacted the box and signal/power level wise all looks great. Can you please get back to me with the following information:
* Is the box well ventilated?
* Are the leads connecting the box to the TV connected securely?
* Have you rebooted the box to refresh things?
Give the above a try and let me know how you get on. I'm here to help if you need me
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