The show has been filmed at the outdoor field of "Midoriyama studio (city)" in Aoba-ku,Yokohama-city, Kanagawa prefecture. The large studio located in suburb is a studio of TBS(a TV station) broadcasting that show.
Access: From Shinjuku, take Odakyū Line
& get off the train at Turukawa station (it seems to the nearest train station to Midoriyama studio.)
to transfer to the bus bound for Narakita-danchi via Kodomono-kuni" and get off at "Midoriyama studio bus station"
It will take around 1 hour or more because the bus don't come frequntly.
Dude, why not stay in Yokohama?...that will be a LONG ride from Narita, as it is on the OTHER side of Tokyo, and there are surely limousine buses going from Narita airport to Yokohama...
http://www.midoriyama.co.jp/access/index.html
10 minutes by taxi from JR Nagatsuta Station (Yokohama line)
10 minutes by taxi from JR Naruse Station (Yokohama line)
By car, from your hotel to Midoriyama studios is over 100km, and will take 2 hours with a little luck. There is no direct train line from Narita to the studio. So basically you are taking the easy way out to get to the hotel only to dig a huge pit for yourself to get to the studio. I am not sure how many hours it would take by train to get there (including changes) but I would say you are wearing "Bad Idea" jeans right now.