A:Answer The B9 and C9 series OLEDs are 2019 models. The B9 series uses LG's α7 Gen 2 Intelligent Processor while the C9 series OLEDs use the more advanced LG α9 Gen 2 Intelligent Processor. The CX and GX series OLEDs are 2020 models and new for our 2020 OLED models is the latest webOS TV platform, LG's α9 Gen 3 AI Processor 4K with AI Picture Pro/Sound Pro, Dolby Vision IQ, Filmmaker Mode™, Sports Alert Mode, a Home Dashboard, Bluetooth Surround Ready that lets you connect up to two speakers, including LG XBoom Speakers, for a true surround sound experience Sopport for HGiG (HDR Gaming Interest Group) and support for FreeSync™. The GC series OLEDs do not come with stand feet. They come with an included Wall Mount that is designed to take advantage of the TV's design, allowing it to be mounted flush to the wall. The stand feet cab be purchased separately for tabletop installation The GX series Oleds also have the hardware for the NEXTGEN TV (ATSC 3.0) tuner will require a software update for activation which will be automatically pushed out later in 2020. You will need to check with your local networks to determine when they will begin any NEXTGEN services as well, since this will also be a staged rollout...^IFV