I've got the first-gen MBP w/ Retina mid-2012. I'd love to upgrade but we're a year or two out on that front so... I did just do a clean install and manually transferred basic files (think mp3 files, Word docs, etc.) I've got an older Samsung HDTV, roughly 32" 720p, connected HDMI to HDMI as a second display (not mirrored). Almost the moment it's plugged in the MBP's fans go berserk and within a few minutes the machine is sluggish to the point of unusable. I'd love to blame it on the Catalina beta I installed but it did this before on Mojave. I'm not using crazy programs or doing video editing; it's for writing and having a Safari browser open, Ulysses, and a PDF file...pretty simple. Is there a different way I should be connecting the 2nd display? Is there a better display option altogether? I need a second display and I'm up for anything that'll actually work. Thanks!