A quick and clunky way to make one of those videos where it speeds up every time something happens. Uses MoviePy.

friday.py

#/usr/bin/python

# use this script to make one of those videos where it speeds up 
# every time something happens
# this has only been tested on a Mac with Python 2.7
# Also, moviepy is picky about codecs. What I have here seems to work 
# (libxvid) but you may need to try something else

# Your mileage may vary

import re
import os
import glob
from moviepy.editor import *

# wherever you're working
basepath = "./Videos/friday/"

# initial speed
speed = 1

# what to change
# positive gets faster, negative gets slower
factor = .1 # .1 == 10% faster

# get all of the clip points
# I did this manually for Friday, but you could also use a transcription file
marks = ['00:00:00','00:00:45.0','00:00:46.0','00:00:48.5','00:00:53.5','00:00:54.3','00:00:57.0','00:01:38.8  ','00:01:39.8','00:01:42','00:01:47.1','00:01:48.2','00:01:50.6','00:02:10.5','00:02:11.5','00:02:45.5','00:02:49.8','00:02:50.6','00:02:52.5','00:02:58','00:02:59','00:03:02','00:03:15','00:03:16','00:03:19','00:03:23','00:03:24','00:03:27','00:03:42']

# make a temporary folder
if not os.path.exists(basepath+"tmp"):
    os.makedirs(basepath+"tmp")

# cut it up and speed up the chunks proportionally with moviepy
if (len(marks) > 0):
    for m in (range(len(marks) - 1)):
        if (marks[m + 1]):
            video = VideoFileClip(basepath+"friday.mp4").subclip(marks[m],marks[m + 1])
            mod = video.speedx(speed)
            mod.write_videofile(basepath+"tmp/friday."+str(m).zfill(3) +".mov",codec="libxvid")
            speed += factor

# stick them back together
files = glob.glob(basepath+"tmp/*.mov")
clips = []
for f in range(len(files)):
    video = VideoFileClip(files[f])
    clips.append(video)

# write a new video file called "output.mov" in the basepath directory
final = concatenate_videoclips(clips)
final.write_videofile(basepath+"output.mov",codec="libxvid")