Help identify an Emulator

We want to make a series of demos on use of the TI-Titanium for a specific application, and now looking for the best tools. On this video series, the author is using what appears to be a very good emulator of the TI-Titanium. I have searched for some hours on the internet and cannot identify it. Does anyone recognize it or have suggestions for something comparable. A sample is at https://www.youtube.com/watch?v=O0Y0Q7YnHkU
Thanks very much.

Thanks very much.
