Recording all Mad Men episodes

[TonsOfSteel]

I have a 722 DVR and it will only save 20 Mad Men shows. The disk is not full. I just realized it deleted episodes 1,2, and 3 to record 21,22,and 23. Any ideas why this is happening?
TIA

 

[KAB]

Your Mad Men timer must be set up for a maximum of 20 recordings. Go to the timer's options and set to # (no limit)

 

[dwarren2]

Or get an ehd and move the episodes over to it. No limit on the ehd.