This chart should help you to better understand the most notable differences between the original TiVo Series3 HD DMR (discontinued) and the newer TiVo HD and TiVo HD XL DVR units. This link to the TiVo HD spec sheet may also be useful. TiVo Series3 units are no longer available, and although we can order you a TiVo XL system, by special request, we prefer to offer the TiVo HD system as the core of our upgraded systems because it is a better value, and we offer a better warranty than available for the TiVo HD XL from TiVo, Inc.

	TiVo HD DVR	TiVo HD XL DVR	TiVo Series3 HD
Disk Capacity (unupgraded)	160GB	1TB	250GB
Suggested Retail Price	$299	$599	$799
Upgradable	√	√	√
THX® Certified	x	√	√
OLED Front-Panel Display	x	x	√
Premium Backlit Learning Remote	x	√	√
Standard "peanut" Remote	√	x	x
Front Panel Controls	x	x	√
Supported Signal Sources
Digital Cable w/ Dual CableCARD	√	√	√
Analog Cable	√	√	√
Digital Over-The-Air Antenna (ATSC)	√	√	√
Analog Antenna	√	√	√
Video Connectivity
HDMI	√	√	√
Component	√	√	√
Composite	√	√	√
S-Video Out	√	√	√
Audio Connectivity
Optical Digital Audio	√	√	√
Composite / Stereo	√	√	√
Other Connectivity
RJ-45 Ethernet	√	√	√
USB 2.0	√	√	√
RJ-11 Telephone	√	√	√
eSATA Port (future use only)	√	√	√
Included Accessories and Cables
HDMI-HDMI Cable	x	√	√
Component Video Cable	√	√	√
Composite A/V Cable	√	√	√
RJ-11 Splitter and Phone Cord	√	√	√