You will receive a reply with the number of days the next episode will be on (and the date) as well how many days ago the last episode was broadcast (and the date).
eg. Send an SMS to (650) 918-6928 with “Dexter” and you will get the following reply:
Next episode of Dexter in 224 days (9/25/10). Last episode was 62 days ago (12/31/09).
Is the app only showing for "New" episodes?
Long story short - this bug is addressed now.
Definitely add show times, like your friend said.
Are you planning on monetizing this at all?
Don't really see this taking off yet and don't plan to monetize unless it gets too expensive to run. A couple of hundred hits a month is affordable.