Which brings us to 66, one more than the lease.
...Except based on the advance schedules, GSN has skipped one episode (#S-016, John Goss' first day) and is going to skip another on the 18th (#S-022, John's seventh day), so at the very least we'll see Jim fish out $2,000 from his pockets to tempt Alice with an Instant Bargain on her final day.
Assuming the lease is 65 episodes (I don't recall any confirmation on that), we'll get to at least April 9 barring any further skipping.