Well, you know how it goes.  You can't figure out a problem until you post it.  At least I think I figured out Lionel's intent (another issue).

On IOS, there is something called "Screen Mirroring" that you can turn on to duplicate what is on your iPhone or iPad on a TV.  Pretty easy really.  Once you have the "Lionel Wireless Camera" app up, simply turn on "Screen Mirroring", choose a destination, and its there.  I'll let you search for the specifics of turning "Screen Mirroring" ON yourself.

One item that I wish Lionel would address is some form of User Manual for the "Lionel Wireless Camera" app.  I was left to hunt and peck and try some things out and in the end its not "real" hard but I spent considerable time looking for something in the app that directly supported Airplay (something you see with video projection on IOS devices).  The only way I could figure out the TV element was Screen Mirroring and I wonder if Lionel intended this or had something else in mind that remains hidden in the app.

Anyone with strong experience, more extensive findings, or, egad, a manual for this app out there?  Would love to hear from others.