Philo, the developer of a social television platform, announced on Wednesday that it has raised an undisclosed sum of financing, from investors including North Bridge Venture Partners and DFJ Gotham Ventures.

New York-based Philo also launched its social TV Web application on Wednesday, in addition to a new version of its application for the iPhone and iPod touch, which now supports check-in to time-shifted TV content. 

Philo's service lets users share which programs they are watching in real-time with friends, comment, win awards and earn credits.