"Quit your horsing around, we've got work to do"....I jokingly quipped at our venerable director, Scott Dummler, as he attempted to ride a horse, in a regularly mounted saddle, in REVERSE. In doing so, he would've had to look back, constantly removing his focus from filming in order to maintain the speed and direction of his horse while filming Rick....He opted to ride the horse regular mount (for comfort and safety), but then had to shoot reverse over his shoulder using the viewfinder on his camera as his focus and framing guide, whereby everything he had to adjust to was opposite of what was natural (essentially the "mirror affect")......
In the end, all the viewing audience will see when you watch the show, is an absolutely flawless piece of directing and the steadiest of traveling shots.
By the way, that's just what Scott had to deal with, Bob our sound man had a multitude of things to focus on himself as he had to maintain sound levels, whilst keeping his horse on track.
A lot of what you see on this show is never as easy to shoot as it may appear....especially considering nothing is scripted.