You’re looking at a DC-8. There are four separate cuts. They’re all taken through a pretty strong fisheye lens. You’re interested in the second cut.
First cut:
The camera is about 3 feet above the ground and on the left side of the fuselage the near the nose gear looking aft. Then they dolly a few feet towards the tail, with the result that the nose gear & doors slide out of view on the left while being out of focus the whole time.
At the 29ish second point we can see the fuselage underside and both wings with 2 engines each in the fisheye’s extra-distant background. On the right of vid (airplane’s left) is the underside of the portable air-stairs pulled up to the plane’s main door. On the left side of the vid (airplane’s right) just aft of those air-stairs we see the grill of a truck. We also see a black hose hanging down from the right underside of the fuselage going down to the ground then turning and leading off-screen to the vid’s left.
Airplanes of that vintage did not have air conditioners that worked when the engines were off. Instead a truck with a big air conditioning unit installed was driven up and a hose from the AC was plugged into the airplane. Those hoses are 6-12" in diameter. Here’s a pic of the same setup on another DC8 from a more typical vantage point: http://imgproc.airliners.net/photos/airliners/1/6/0/0138061-v40-6.jpg
Second cut:
That’s the underside of the tip of the nose viewed from a really weird angle.
If you zoom in on the pic I posted just above you’ll see two large airscoops under the nose on the lower cheeks; one on each side. And right between them you’ll see a small circular flapper door and a dark corrugated hose hanging straight down. That hose provides highish pressure air to turn the engine starters and is fed by another truck or trailered power cart not in the pic.
The cut in H50 starts right beneath where that hose connects and is looking more or less straight up at the underside of the two cheek scoops with the front of the airplane at the 1 o’clock position and the tail at the 7 o’clock position. Unlike in my pic, the hose is pulled forward a bit so it’s not hanging down in the camera’s way. Instead it’s sticking more or less out the front of the plane.
The rectangular dirty brown pattern is the various access doors in that area. The DC-8 was weird and put the air conditioners up there in the nose. Those devices are big, messy, and need service often. So they have large access doors under them and there’s usually grease & gunk along all the door seams. In flight those cheek scoops feed cooling air into the heat exchangers.
At the 30 second point when the hose is still visible at the upper right of the scene look carefully at the 7 to 8 o’clock position of the fisheye and you can just make out the wing and 2 right engines in the far background. They’re smeared so they’re almost parallel to the edge of the fisheye’s field of view.
Above that, around 9 o’clock and badly smeared by the fisheye you can see the cab of the air conditioning truck from the first cut.
The camera tilts, rotates, and pans in a very weird fashion throughout this cut. It took me quite awhile to suss out what I was seeing. But it was fun.
3rd cut:
Left inboard (#2) engine seen from the inboard side then panning to look down the throat.
4th cut:
Final approach just before landing as seen looking up through the runway’s approach lights. No clues about which airport or runway that was. But it was a DC-8. Which is better continuity than most TV shows manage.