Why not just give the son $20 at the start of the movie?
So the mom would prefer her TV to get hauled away, then have to pay $25 to get it back, then have to haul it back by herself...instead of simply giving her son $20?! That's all he got from the pawn place was $20. Then she had to pay $25 to get it back out, then deal with the hassle of transporting it. Not too sure that made a lot of sense.
Otherwise, great movie!