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If you've perused Amazon Prime Day's TV deal offerings but are still looking for the right fit, consider this buy-one, get-one deal: Right now at Best Buy, when you buy the 75-inch TCL X11L (or one of several other models and sizes), you can save $1,200 and get a free 55-inch TCL Q6 TV to use as a second screen in your office or bedroom. The best part? You don't need to be a My Best Buy Plus or Total Rewards member to take advantage of this deal. 

Need a larger or smaller TV? Best Buy is also offering the free TCL Q6 when you purchase the TCL QM8L, QM7L, or RM9L models (available in a variety of screen sizes). The largest discount is up to $5,000 off a massive 115-inch model. 

Also: The best Amazon Prime Day TV deals actually worth your time

I got to go hands-on with the TCL X11L earlier this year, running it through a battery of Calman tests for color accuracy and brightness, and it managed to hold its own against premium-grade OLED competitors from LG, Sony, and Samsung. With the new SDQ-Mini LED panel, you'll get bolder, more accurate colors than previous TCL TVs, as well as a 144Hz refresh rate, Dolby Vision and Dolby Atmos support, as well as IMAX Enhanced audio and picture modes for streaming movies.

Also: TCL X11L review

The TCL Q6 is a much more stripped-back smart TV better suited for second-screen duties in an office, bedroom, or kids' playroom. You'll still get support for both Dolby Vision and Atmos to create enhanced picture and sound as well as 4K native resolution and upscaling so everything from Hollywood classics to the latest blockbusters looks their best. And the 60Hz refresh rate gives you smooth motion for live sports, movies, shows, and console gaming.

To take advantage of this deal, head to the offer builder page at Best Buy and select the 75-inch TCL X11L (or any of the other TCL Mini LED TVs on offer). The website will add the TV of your choice to the shopping cart, and then allow you to add the TCL Q6; the site will automatically apply the discount at checkout, so don't panic if the final price seems steep at first. 

How I rated this deal 

A $1,200 discount on TCL's newest SDQ-Mini LED TV is already a great deal, but getting a free 55-inch TCL Q6 as well is the cherry on top. Both screens give you excellent 4K resolution, Dolby Vision HDR, and Dolby Atmos virtual surround sound, and the Google TV platform for access to hundreds of popular apps. That's why I gave this deal a 5/5 Editor's rating.