Hi Im sorry to hear that. No there is no way on this set to change the HZ.
Can you explain what the problem is with the Netfix image?
Hi it is likely the resolution not being correct but please check your cables because that woudl cause this not the MHZ.
How old is your TV?
Thanks Tech Mike
Hi I was just about to ask that lol
It sounds more like the Tv may have a defective component. i wold exchange that one and see if that solves the issue.
There really isn't anything other that poor cable signal or a bad TV that would cause this issue;-)
I have over 35 years of experience building and repairing Tvs and working with internet connections;-)
Please rate kindly at this time and I will stick with you until this is fixed, no additional cost for this.
Have a great day glad I could help !