toshiba 50lf621u21 50-inch smart 4k uhd with dolby vision - fire tv, released 2020 toshiba complete your home theater setup with this 50-inch toshiba fire tv smart tv. the 60hz panel refresh rate reduces motion blur for detailed, clear visuals on the lcd screen, while the 2160p resolution renders stunning image quality. this toshiba fire tv smart tv has hdmi and usb ports for connectivity to various media sources.