Dear Inman: On reruns of “How I Met Your Mother” there are ads in the background for the 2012 Toyota Prius V, but how is that possible when some of the episodes I’ve seen them in originally aired in 2008? – Teresa, via e-mail
Dear Teresa: Through digital magic, of course! Ever alert for new ways to cram commercial messages into TV shows, especially now that viewers can skim past commercials, advertisers are turning to product placement, in some cases even adding new messages to old shows. Does this mean that someday you’ll be watching “I Love Lucy” and see a billboard for a 2012 Prius in a 1954 show? Don’t put it past them – the bottom line rules in TV.