Normally it will be difficult for you to take the TV alongwith you because of size, unless you are travelling 1AC. I suggest you to contact the Railway Station and make your enquiries, and pack it properly and book it alongwith your own train. There is a provision for that on the train you are proposing to take. If you are caught by ticketing staff, you will have to pay penalty charges. Better to avoid, check, and then act accordingly. Good wishes.