Let me start by saying what I use to tell new technicians, "Nothing excuses bad behavior". Now that being said lets discuss what happened. Your voltage regulator to the B+ of horizontal output transistor went bad (this with the damper diode regulates the pulses are used by the IHVT (Integrated High Voltage Transformer) to create the high voltage used by the CRT anode. As you have figured out, shop #1 tried to rip you off or they did not have anyone that could troubleshoot at component level, a lot of shops still have this problem.
He charge you a fair price $170.00, where things went wrong was when you asked what could have caused this, he replied a power surge, you said in so many works that you had a surge protector connected to which he said no you just had a power strip connected. This was more or less him reliving a bad experience with power surge protectors, customers, insurance companies, and lawyers. To make a long story short TV shop owners hate it when you say that you had a power strip with surge protection, because this means that they have to wait for you to get your money from either the protector company or they have to wait until the court case is over before they are paid anything, and some customers have been caught in filing false reports and then the TV shop is caught up in this whole mess and the owner could be charged as a co-conspirator, thus possibly lose his shop because of a fraud charge. It other words he was scared.
First apologize for the misunderstanding, then ask if he would give you a list of the parts used on your set, and explain that this list is just to provide a work history of the set, Tell him that you in no way meant him any disrespect or hard feelings. This may or may not help, but it will show him that no harm was intended.
Just ask for the list, not the original part.
Once you have your set back take it and the list to another shop and this time don't ask "What could have caused this" Just ask if faulty power could cause this to happen? .
I hope this answers your question and provides relief.
RCA MM36100 36"...
on May 09, 2008