NBC (the National Broadcasting Company) was the network responsible for the original Saturday morning airings of the Smurfs cartoon show, from 1981 to 1990. It is now currently part of NBC Universal.
A close up of the 1981 comic book ad with the Smurf characters.
A TV Guide advertisement that came out in 1982 promoting the NBC Saturday Morning Cartoons with The Smurfs, The Hulk, and Gary Coleman.
The Smurfs Cartoon Emmy Consideration Promotion from July 20, 1982.
A NBC ad from 1983 features the Saturday Morning Lineup with Baby Smurf hanging around Mr.T.
An ad from the fall of 1984 where The Smurfs, Mr. T, and The Chipmunks get together in a spectacular adventure comedy special. They also get a little help from Thom Bray (Riptide), Alfonso Ribeiro (Silver Spoons), and Danny Cooksey (Diff'rent Strokes).