According to our information, the primary difference between the OLED65G42LW and OLED65G48LW models lies in their tuner functionalities. The OLED65G48LW is equipped with a twin tuner, enabling features such as simultaneous recording and viewing of different channels. In contrast, the OLED65G42LW does not offer this capability. This distinction in features may contribute to the price variation between the two models.