Need to retune tv every time I switch it on?

interesting reading here:

http://forums.moneysavingexpert.com/showthread.php?t=1683823

Basically made by no-name companies in the far east and sold under house brands.

Check the manual that you are doing the tuning procedure properly. You could also do a Google search for info on the specific model number you have

Anon
April 2016

are you saveing the change everytime you do the set up?

m
April 2016