On my Panny it's called Geomagnetic Correction within its Video menu.
I had an old RCA Home Theater 31" that only had a polarity switch on the back.
Some sets just didn't have it, they auto-corrected to the best of their ability as part of the power-on degauss (boing sound heard when powering up). Hopefully your degauss circuit still works. Would typically settle out after a few days of normal power cycling to correct for changing the orientation of the TV vs. the magnetic poles after moving the set. My Panny also degausses after exiting the GC menu mentioned above. Be careful if you manually trigger the degauss though to let the circuit cool at least 15 minutes between tries.