Budgets don't have to be huge, however if you're expecting high yield from 10 spots running, you'd be VERY lucky.
Here's information on the google TV Ads;
http://www.google.com/adwords/tvads/
You can even tailor the ads down to specific TV shows that are running in certain times etc.
When I was a marketing director I ran hundreds of TV Spots within a 30 day period, and thousands of spots on radios. I'd usually buy 20 spots on a particular radio station per day, however depending on their advertisers, sometimes the spot could run 25 times. Multiply that by usually 5 stations in each market and 15 days, there was a lot of time our spot was on air. New spot every 2 weeks for 20 weeks during the summer.
Now, with google, you'd be using filler time and wouldn't need to outline such a huge campaign (unless you wanted to blanket the airwaves). Being able to choose your time segments and particular stations will help narrow down demographics to your target audience. It's so much better this way than having to negotiate contract rates with execs!