Firstly, a quick discussion of trademarks:
Yeah, all the trademarks found here belong to their owners. These include, but are not limited to:
Arduino, Linux, Lionel, Apple, Unix, Microsoft, etc., etc.
Train Experimenter Shield, TES, Train Actuator Shield, TAS, Infrared Experimenter Shield, and Power Caboose belong to me, Mike Ficco.

In this video we meet:
• The Train Experimenter Shield, TES, which directly receives wireless Lionel Legacy commands.
• Several versions of the Train Actuator Shield, TAS. Included are the TAS Max, which can act on four (4) simultaneous Lionel Legacy commands and the TAS Heavy high current version.
• The Infrared Experimenter Shield which can control Lionel Legacy trains (and many other things) using an infrared remote.