I found the perfect one to do today. I found it in last week's TV Soaps supplement from The Sun newspaper.
It has a Neighbours theme. The yellow shaded letter spells out the name of one of the programme's characters.
I'm just about to hit start on the stopwatch...
It took me three minutes and fifty-seven seconds to complete the puzzle. The letters in the yellow boxes were:
G N D L E L O L N Y E
Which - when rearranged - spells: GLEN DONNELLY.
I wrote about Donnelly in a post from last year when the character returned after thirty years away from the soap.