What are some alternatives?
When comparing HeardOnTV and WatZatSong, you can also consider the following products
AudioTag - AudioTag.info — is a free music-recognition service.
Shazam - Shazam is a mobile app that recognizes music and TV around you.
WhoSampled - WhoSampled, the service that identifies music samples
SoundHound - SoundHound - the most immersive music search, discovery and play experience on mobile.
Musixmatch - - World’s Largest Lyrics catalog and official
Midomi - midomi.com find and discover music and people.