The Govee DreamView T1 TV Light Strips, designed for 75"-85" TVs, should be long enough for your 75-inch TCL TV. The LED strips have a total length of 15 feet (approx. 4.57 metres or 457 cm), which are segmented into four parts and can be attached to all four sides of your TV.

It is important to follow the installation instructions to ensure that the strips are fitted and adjusted correctly. The flexibility of the cables and the ability to bend the strips at the corners help to ensure a snug fit to your TV size.