Adsense works on any domain name. I wouldn't count on making any real money using adsense though, unless you're generating alot of traffic...
Here is a sampling of our stats from Adsense...
Page impressions Clicks Page CTR Page eCPM [?] Earnings
35,043 113 0.32% $0.98 $34.21
Selling niche banners are the way to some real money on your .tv site, imo.
Again, Google Adsense is good (money) if you're getting a TON of traffic. Amazon banners were a complete loss during our tests. Google is nice because their system is smart enough to learn your topic matter very quickly and tailor ads to your site topic. Having Google ads are healthy because it gives other possible banner advertisers a sample of what their ad would look like and it keeps the pages somewhat fresh.
We dropped our Amazon ads for now and kept Google. You really need a banner system, quite frankly. Something you have to build or get from your hoster.
Website traffic grows over time. Years ago, I used to tell people about a site I started, "I had 9 visits a day when we started and 6 of them were me. (nowadays of course we filter ourselves out) We now have 12,000 vistors a day, but it took 3 years and hard work to get there." I can tell you absolutely how many fish you will catch if you don't put a hook in the water. Get out there and get your feet wet.
Good luck on whatever you try.
Dave Lalande
Impel.TV