Cheyenne getting dressed in hotel room talking to Marie about him staying. As scene switches between the two, the shirt collar is curled, then it's not, then it is again.
Cheyenne talking to Marie and Pete at the river and how Gentry has dammed it up. Cheyenne's wearing a noticeably brighter shirt on his close ups.
"Chris Barlow" is his name in credits, but he's called Barstow several times in episode.