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The Bottom Line: While it's not compatible with your cable company's interactive and video-on-demand services, the TiVo HD's excellent onscreen interface and long list of network and Internet features puts it in a class above the generic high-def DVRs offered by most cable providers.

Specs: DVR, 16.5 in x 12.6 in x 3.4 in, 190, 2, TiVo, Remote control

The Bottom Line: The Series3 delivers dual-tuner HD recording and some worthwhile networking features to cable customers, but the exorbitant price tag will be too much for all but the most devoted TiVo fans.

Specs: DVR, 16.5 in x 12.6 in x 3.4 in, 300 hour(s), 2, TiVo, Remote control

The Bottom Line: While its slick interface and cool networking features still distinguish it from rival DVRs, the dual-tuner function of the TiVo Series2 DT is useful only for those with analog cable service.

Specs: DVR, 15 in x 12.5 in x 3.3 in, 80 hour(s), TiVo

The Bottom Line: While its slick interface and cool networking features still distinguish it from rival DVRs, the dual-tuner function of the TiVo Series2 DT is useful only for those with analog cable service.

Specs: DVR, 15 in x 12.5 in x 3.3 in, 180 hour(s), TiVo

The Bottom Line: Multiroom video streaming and third-party PC software make the ReplayTV 5500 series a worthwhile alternative to TiVo for advanced DVR users.

Specs: DVR, 16.9 in x 14 in x 3 in, 40 hour(s), ReplayTV, 2x, 4x, 16x, 20x, Universal remote control, 1 year warranty

The Bottom Line: Multiroom video streaming and third-party PC software make the ReplayTV 5500 series a worthwhile alternative to TiVo for advanced DVR users.

Specs: DVR, 16.9 in x 14 in x 3 in, 80 hour(s), ReplayTV, 2x, 4x, 16x, 20x, Universal remote control, 1 year warranty

The Bottom Line: Multiroom video streaming and third-party PC software make the ReplayTV 5500 series a worthwhile alternative to TiVo for advanced DVR users.

Specs: DVR, 16.9 in x 14 in x 3 in, 320 hour(s), ReplayTV, 2x, 4x, 16x, 20x, Universal remote control, 1 year warranty

The Bottom Line: Multiroom video streaming and third-party PC software make the ReplayTV 5500 series a worthwhile alternative to TiVo for advanced DVR users.

Specs: DVR, 16.9 in x 14 in x 3 in, 160 hour(s), ReplayTV, 2x, 4x, 16x, 20x, Universal remote control, 1 year warranty

The Bottom Line: The best interface on the planet and cool network options make TiVo Series2 the standalone DVR of choice.

Specs: DVR, 15 in x 11.5 in x 3 in, Black, 40 hour(s), TiVo, Universal remote control, 1 year warranty

The Bottom Line: The best interface on the planet and cool network options make TiVo the standalone DVR of choice.

Specs: DVR, 15 in x 11.5 in x 3 in, Black, 80 hour(s), 1, TiVo, 181, Remote control, 1 year warranty