The advertising world has come a long way since the first TV ad aired in the UK in September 1955 (for Gibbs SR toothpaste, since you ask): multiple new channels, multiple new formats, and consumers swamped in promotional messaging of one sort or another...
How Dentsu predicts attention
A new Dentsu model predicts whether or not attention will be paid to an ad, how long attention will be paid for and whether it will drive effect.