I don't think the schematic is correct for the chassis. Here's a closer look at the area in question
Reckon so too, and thanks for the new pic.
Don't want you to break anything, but maybe you could pull it off to get a closer look? There could be markings on side/below we cannot see from above. You could also possibly measure it using one of those meters.
You can confirm if it is an inductor by just using your DMM in ohms mode, as described above.
If it is an inductor, the red dot suggests "2" but without more markers or clues we wouldn't know if it is 22mH or 2200mH, for example.
OTOH, on your latest photo I see there is a dot on the PCB that aligns with the red dot, so possibly just a polarity marker?
You might want to check how hot it gets when TV is powered on. In the ideal world you'd have a thermal camera or a thermal probe for a multimeter, but realistically you probably don't. Failing that, and if you are feeling brave, maybe you could carefully hold a finger nearby.