I was on the fence about Pluto anyway (there's nothing there that I don't have elsewhere) so this is as good a reason as any to delete it from my device. And it isn't "half screen", but 1/3 screen upper left.
Regarding the brighter LED: I can live with it as my Roku is not in direct line of sight of the TV screen. And it's not that much brighter; maybe twice at most.
I address the slight SD anomalies in the other thread.
Charter Spectrum 60; d-link dual band router
Roku 4210, 3710; Xbox One, 360; Samsung BD player
Samsung tablet; Windows Vista laptop; LG phone
Toshiba DVD-R; Sony AVR; Panasonic AR
1080p and 720p TVs