It's always been the same in this trade. "It's only the picture valve, it's only the sound valve, it's only a fuse, it's only the on off switch, it's only a loose wire, and now it's only capacitors"
It doesn't really matter what they think the the problem is, most people don't have the knowledge or skills to do it themselves, that's why they opt to pay a qualified engineer.
Repair remedies were available to the public before the internet, in Television Magazine, component companies also advertised, so Mr Public could buy his 1N4148's BC107's and 680kΩ but what does he do with them then?
We haven't always helped ourselves! Offering free call outs, free estimates, free repairs practically!
Domestic appliance engineers generally have a call out charge, £40 seems average, so you get paid even if the repair can't be or isn't done. Customers don't say it's only a fuse to them!
I've moved away from TV repairs so don't do many now, 1 or 2 a month.
The internet is a wonderful source of information, but it's not always correct or relevant information!
Until my Euro Millions cheque arrives, I will still be fixing things!
Keith