I'm thinking of going 4K late this year. I want to start some early planning, figure out what I don't know, what gear I'll need (large and small), and work out the budget. My speculative schedule is to start with the pre-ordering of 2019 projectors, typically announced at CEDIA in the Fall. I don't want to upgrade my direct view sets to 4K until I can upgrade my theater projector. I see only disappointment and sadness in having a glorious new OLED 4K DR set in the living room, but watching all my favorite TV and movies on a 1080p projector. Here's where I'm starting: Theater Marantz 7702mkII pre-pro Sony 40ES projector (HD) TiVo Mini AppleTV (HD) HTPC running Emby (HD) NVidia ShieldTV (4K) Living Room 50" Kuro Onkyo TX-SR707 TiVo Roamio Blu-Ray Player Bedroom 40" LCD (budget model) TiVo Mini Blu-ray player (ancient) Here's where I'm going: Theater Marantz 7702mkII pre-pro (no need to upgrade to 7705) JVC NX7+ (whatever 2019 brings to the mid-range 4k line) TiVo Mini? Do I need to upgrade? AppleTV 4K HTPC running Emby NVidia ShieldTV (4K) UHD disc player (I'm really uncertain about HTPC for 4K) Living Room 65" LCD or OLED. Doesn't have to be top-shelf, but above average 5.1 AVR compatible with 4K. I want Audyssey, but otherwise something low/mid-range is fine TiVo Roamio? Upgrade to Bolt? AppleTV 4K NVidia ShieldTV (Maybe...I don't use HTPC streaming in the living room much) No disc player (rarely watch discs in the living room, so why spend $500 on a player here) Bedroom 40" 4k? TiVo Mini? AppleTV 4K? I've labeled things I know I want to upgrade in dark blue. I've labeled things I'm uncertain about upgrading or adding in hot purple. I've left things that I think don't get upgraded in normal black. Also in the background are issues of cables. Especially for the theater. I need about 30'. Currently the system uses a Key Digital HDMI extender. I don't know if this needs an upgrade. I haven't decided if I'm doing the theater upgrade myself or will work with my designer/installer company. I think it depends on how complicated it looks for setting up the 4K HDMI run and installing the projector and other new gear. The living room and bedroom I have under control. This should just be a list of "what gear do I buy" questions. But underlying is my uncertainty about whether 4K is just a matter of buying a new TV, AVR, and streaming box and connecting the HDMI cables...or if there are nuances and details to attend to that I'm ignorant of.