Such companies and tv ads will definitely attract more people to use Bitcoins.
I highly doubt it.
People are lazy by their nature, chances for bump in "Bitcoin" googling are very low in my opinion.
I don't agree with you.
Advertising doesn't mean that people will buy new product, or try new service, right away, as soon as they see new ad.
Maybe 1 of 100 or 1 of 1 000 prospect will do this.
but, if people will see advertising about bitcoin more and more often, eventually more and more people will become interesting in bitcoin and check out about this.
In this way, bitcoin will become more attractive and popular, and this is good way to become mainstream eventually.