Bert,
 
There are collections of commercials spots, can be bought, many
publicity people in this country have them. They are shown at
publicity meetings.
 
But, I don't know about political spots, I know about product
advertising.
 
There is another possibility: many spots are re-filmed in
Venezuela, and it is normal to have let's say, the same product as
has been filmed in France, Canada and Argentina; after that, local
producers redo the spots, adapted to Venezuela, so they must have
many spots.
 
Regards,
 
Mario