The world’s only DVR which is THX Certified
for audio and video quality.

THX certification means you'll be enjoying the gold standard in image and sound performance on your HDTV or home theater setup. Essentially, it ensures that the integrity of your high-definition content won't be compromised as you capture, store and playback HDTV programs and movies. You'll experience the crisp details, vivid colors and exceptional audio clarity that is true to the fidelity of the original broadcast source.

TiVo Premiere XL4 is an exclusive category. Only the top performing sound and video products manufactured today can achieve the rigorous standards required for THX certification. The Premiere XL4 was put through extensive image and sound analysis and testing. These tests ensure the accurate recording and playback of content with the correct color, contrast, and black/white levels without softening the picture or producing digital artifacts. The end result? A sharp, precise and often breathtaking entertainment experience.

TiVo Premiere XL4 helps you optimize image performance and sound fidelity with an easy-to-use calibration and tutorial video. In your "My Shows" folder you'll find the five-minute "THX Optimizer" video, which requires use of the THX Optimizer Blue Glasses you'll find included in your Premiere XL4 packing boxes. This process helps ensure you'll experience an uncompromised and truly unique HDTV experience.