How do I adjust the overscan/geometry myself please? I know there are a few things to turn in the back of the set but am not sure what to do.
Also, how would I be best going about doing a listing looking for a replacement tube? I'm not really sure how best to 'advertise' it given that there are a number of compatible tubes. In relation to that, I know the set has been over-boosted, and that's what's caused it to take so long to warm up. If I do find a replacement tube, do I need to do something inside the set to remove the boost that's been applied so it doesn't affect the new tube?
Thanks
