Hi Justin,
The charts that I use in the videos are from
Prorealtime.com. One of the reasons why I use them in the videos is that they have a bunch of advanced features available for free with historical data, so people that are new to the markets can practice trading with them without having to pay anything. If you want realtime data you have to pay for the feeds the prices for which are listed on their site.
A have heard good things about the charts seeker mentioned as well.
Best Regards,
Dave