The big gun for developing memory is a Magnum 44 aimed at the TV Set.
Destroying the TV Set
: The anti-Christ of memory growth (and language and cognitive development as well) for children under five is TV.
Time watching TV is worse than being mentally “dead-in-the-water,” because it gobbles up time that should have been devoted to brain growth. Instead, we get at best mental stagnation. I particularly find useless, the mindless cartoons that spout violence. The emphasis is on brief bursts of sensationalism using sounds and sights, which provide immediate gratification and little need for memory (Mr. Roger’s Neighborhood” is a shinning exception to this rule).
Show me a family whose TV is kept in the closet and I will show you some kids with excellent memory (and language skills).
I would limit the child over five to 1/2 hour a day of carefully selected educational shows devoid, if possible, of any commercials.