Teaching ESL through commercials. Here my first suggestion.

Even though it is an old song the commercial is simply awesome. What activities would you prepare for your students? I guess it's possible to do with all levels, isn't? It's up to you to show learners the original version of the video. Here is the song by Michael Bolton just as a matter of curiosity:



Lyric
http://www.romantic-lyrics.com/lh9.shtml

Suggested activity

Problem solving/setting: Group work (Make one copy of the lyric for each group)
Estimated time: 25min
Level: Pre-intermediate above
Part a)
1) Make copies of the song.
2) Cut the song into slips.
3) Tell students they'll listen to an old song. The lyric is mixed up.
They'll have to put it in order.
4) Play it without stopping. Play it more times if necessary.
5) Check with the groups the correct order of the song.
Part b)
Conversation
1) What is the message of the song?
2) Would you use this song for a commercial? Why/Why not?
Part c)
Show students the commercial by Knorr. Conversation II
1) Was the song well used?
2) Was the message successful? Why/Why not?
3) Why was the salt shaker sad?

As a closing activity ask them to write a description about the salt shaker's feelings and actions/events using the present simple and progressive tenses.