Some designers seem much more cautions about unwanted parasitic oscillations. I've seen some examples where there are 100R resistors everywhere on inputs and outputs of discrete stages and OP amps, to the extent where you could wonder if they were just using them for pcb links, until it is realized that it very much helps the RFI/EMI immunity of the whole assembly if its blasted with RF and it also kills the opportunity for various modes of parasitic oscillation in a stage too.
In the Conrac Video monitor I recently worked on, in the vertical amplifier and other places there were many 100R resistors, which one would not normally see in a domestic TV or monitor. Presumably the circuit, being for a military applications, had to be relatively immune from RFI and not produce RFI. The vertical deflection circuits are on page 8 to see these 100R resistors, typically in the transistor bases as Kalee20 points out:
http://worldphaco.com/uploads/The_19...o_monitor..pdf