Yes you should. 31st Jan is the last day for 3+2 warranty offer. From installation date you have 10 days to buy the 2 year AMC. For CX55 its 18640, I purchased it yesterday.Well finally got my tv installed on a table top stand. The lg guy was telling that today was the last day for punching the extended warranty for 4th and 5th year.
My question is whether I should go for the extended warranty plan ?