[old_tv_nut]

You can use the new cord provided it fits the pins properly and isn't an intermittent connection. On the other hand, the original cord is usually attached to the back in such a way that you can remove it and use it as a "cheater" cord (without the back). "Cheater" refers to defeating the safety aspect of forcing the the power to be disconnected when you remove the back. Important for the average customer, but just a nuisance for the service tech who knows what they're doing.