Sorry to hear that... Well then it's obvious the issue is in the analog section somewhere... how about the antenna input?
I'm gonna take a stab at the vertical hold being the culprit. Older sets had an adjustment at the rear of the unit usually set into a spot off to itself. Slight turning of it either with a plastic screwdriver or fingers, if exposed, will usually remedy the issue.... that's what the 6SN7 TUBES USED TO HANDLE... VERTICAL HOLD. i THINK THEY'VE GONE ALL TO CHIPS NOW, BUT STILL SOME ADJUSTMENT SCREWS CAN BE PRESENT. SOMETIMES.
It also might not be sticking out of the back of the box either, so you have to look closely for it.... Call Mit and ask them about your model.
I'm gonna take a stab at the vertical hold being the culprit. Older sets had an adjustment at the rear of the unit usually set into a spot off to itself. Slight turning of it either with a plastic screwdriver or fingers, if exposed, will usually remedy the issue.... that's what the 6SN7 TUBES USED TO HANDLE... VERTICAL HOLD. i THINK THEY'VE GONE ALL TO CHIPS NOW, BUT STILL SOME ADJUSTMENT SCREWS CAN BE PRESENT. SOMETIMES.
It also might not be sticking out of the back of the box either, so you have to look closely for it.... Call Mit and ask them about your model.