There aren't many live cam services for things like plumbing issues because those issues can just be recorded and found on youtube and there isn't much value in someone sitting around to chat live about toilets especially with so many different models and such.
There are however many unique live cam services that do pretty well including bra fittings and doctor visits.
http://www.doctorondemand.com/
http://www.butterflycollection.ca/skype-bra-fittings/