From Denny's website:
One Free Grand Slam Deserves Another.
We're doing it again. Come to Denny's for a Free Original Grand Slam®, Tuesday, February 9, from 6 a.m. to 2 p.m.
And don't forget to visit Denny's for a Free Original Grand Slam® on your birthday.
...also, the first 500,000 to join Denny's Rewards will get a free burger and fries.
