Real English Thirty-Six: and then some

Since a few months ago, every time Mr. F comes to class, he annoyingly says:

"I am going to get you back...and then some "

"I am gonna return the favor...and then some."

"I will get back at you...and then some."

"I am going to give you a taste of your own medicine...and then some."

He is obsessed with the phrase.

He stole it from Mr. Hanzawa Naoki, who is the main character (a banker) in the TV show "Hanzawa Naoki", which was one of the most popular shows of the year.

Actually, the final episode recorded a TV rating of 42.2%, a new high!

Did you watch the show?

If yes, can you explain what it is about?

If no, are you interested in watching a rerun, or getting the DVD/blu-ray disc?