An ad from the American Cancer Society and a spot for Kay jewlers featuring Jane Seymour topped the most-liked and most recalled ad list respectively according to Nielsen IAG.
The lists cover only new ads airing between March 30 through April 26, 2009.

Most-Liked Ad Spot: March 30-April 26, 2009

Rank
Brand
Description
Index

1
American Cancer Society
Imagine a world with more birthdays; birthday parties shown at homes, neighborhoods, and offices; official sponsor of birthdays.
177

2
Hallmark
Cards–Girl tells woman that she got into the music program and couldn’t have done it without her.
172

3
Hallmark
Recordable Cards with Music–Family …

According to data from Nielsen IAG, a Macy’s ad, in which celebrities confirm the existence of Santa Claus for a little girl, was the most liked new “traditional” ad during the four weeks between October 20 and November 16, 2008.
Likeability refers to the percentage of television viewers who report liking an ad “a lot” after viewing it, among those who are able to recall an ad’s brand.

According to data from Nielsen IAG, a Disney Parks ad inviting consumers to visit Disney theme parks for birthday celebrations was the most liked new “traditional” ad during the four weeks between September 15 and October 12, 2008.
Likeability refers to the percentage of television viewers who report liking an ad “a lot” after viewing it, among those who are able to recall an ad’s brand.