I decided to work up a spreadsheet on how this DVR project is going financially. First thing I did was tally up the cost to implement:
973 - Mac mini 114 - Tuners 26 - Antenna 65 - Keyboard 122 - Memory 85 - HDMI to Component Video Converter Box 13 - Optic cable 1398 - Total
My monthly DirecTV bill was 146. For January I purchased two series via iTunes for 63, for a savings of 83 for the month. If I save that on average every month, then my DVR project will pay for itself within a year and a half.