All of these TV "fix up" shows are roadrunner cartoons. It is not a place to get real information, they only intend to entertain and sell products.
Most of the homeowners who allow the TV crews in are left with a mess and a stack of bills when they leave. If it doesn't actually get shown in the "wrap up" segment they didn't do it. When the stage director says "cut" they are gone.
Personally I would rather buy a "fixer upper" than to buy a house that was "renovated" since most renovations are purely cosmetic. At least when you buy a house in the original condition you have some clues to what you have to fix and you won't be ripping out newly finished cosmetics to get to the systems they should have fixed.
