When it comes to plane luggage,
there are Items That Are Completely Banned like fire hazards and weapons.
There there are Items that are Allowed Only in Checked Baggage such as knives and sporting goods.
Then there are the Things You Should Never Put in Checked Baggage at all.
HDTV is considered an electronic equipment so even though you cannot operate it on the plane (batteries are not allowed)
you can put it in your hand luggage if they allow the size,
otherwise risk having it put in the checked luggage and mark it fragile.
Other Airline Restrictions