Softbank's Oneseg TV player and spare battery. It uses WiFi to communicate between the iPhone and the dongle which requires you to select the WiFi network before connecting to the TV. The reception is better than expected and was able to receive all stations with ease and good quality. The application only works on the iPhone, not on the Touch. "Oneseg" is a Japan only TV standard that uses UHF band to broadcast digital TV for mobile phones primarily.
Thanks to Sotome-san for helping me to get it to work!
Video taken with Leica D-Lux 4