Target will be having an extra 10% OFF TV’s (excluding Samsung and LG OLED) this Sunday 12/16 via Cartwheel in the Target App. The 55" TCL 4K S405 will be listed at $349.99. Additional 10% via Cartwheel makes it $314 and, assuming you can combine with Red Card for another 5% Off, the Final Price will be $299.
I already know I will get in trouble from Mods if I post the ad scan, but I can tell you it is readily available (Google Target ad scan 12/16)