Schön dass hier (um 0:21 Uhr) die gleichen Werte angegeben werden wie oben vorgeschlagen.
http://www.repairfaq.org/sam/captest.htm#ctdtk
Obviously, make sure that you are well insulated!
For the main capacitors in a switching power supply, TV, or monitor, which might be 400 uF at 350 V, a 2 K ohm 25 W resistor would be suitable. RC=.8 second. 5RC=4 seconds. A lower wattage resistor (compared to that calculated from V^^2 / R) can be used since the total energy stored in the capacitor is not that great.