Digital Cable Problems

I apologize if this question has already been discussed but I am searching for a resolution involving an Element TV that was supposed to be able to receive a digital signal. It does not receive a digital signal but I want to know if there is a fix so that I can watch TV when I go to a new camp site . I have heard of digital television to analog television converter boxes but I don’t know if this is worth the money or if I should just get a different TV . If there is a cheap option to buy a converter box can please someone tell me the model and how much I might expect to spend to purchase it ?