Look at that link I threw down. Its a hall of shame, and that ain't even close to being every install company out there. However, DTV is to blame for a lot of good installers, like me, leaving the industry. They have apparently begun charging people $100 for a service call if they send their HSP flunkies out to a house. This means if I am doing fullfillment work, and the customer has an issue and decides to call D* instead of me, I'm gonna get nailed. Even if it is something that is totally not my fault (you would not believe how many a**holes relocate their TVs and use a splitter to extend the line---to get out of paying for an upgrade or relocate), I'm gonna get $100 yanked. There is no real appeals process. Basically, just a big FU.
I do QCs only now, and I am also back in school, where I will be learning auto-mechanics. At least in that industry, I don't have to worry about chargebacks.