Here are 5 ads that I found on Youtube from Toys R US:
"I don't want to grow up"
"I don't want to grow up - 14 years later"
"The 90's version of the song and the version I remember fondly!"
"TRU ad from Halloween 1980"
Get a load of the costumes lol I remember that style!
Last up is this ad from Christmas 1981!