Like the TCD540 series, it is a standard definition model, however the major addition to this model is a dual tuner giving the ability to record two shows at once from two basic cable channels, or one basic and one digital cable channel. It is capable of recording up to 175 hours of television and gives the ability to pause and replay live TV. The TiVo Music Player and TiVo Digital Photo Viewer lets you enjoy your MP3 and photo collection off of your computer through your home entertainment system. Multi-room viewing allows you to transfer recorded programs from one Series2 DVR to another for enjoyment in different locations in your home, and the universal remote can control multiple TiVo's in the same house. Online scheduling allows you to program your TiVo from any computer with an internet connection so you will never miss your favorite programs. Some useful TiVo features include "Season Pass" to record every episode in a series, "WishList" which records shows based on your favorite actor, director or topic and "SmartRecording" which gives you show suggestions.