Groovy Old School Local TV Promo Spots

We heartily heart Fishbowl DC for digging up these sweet 1970s-era spots for local television news channels. Here's one for WJLA in 1976:

Though it hardly holds a candle to these 1979 promos for WDVM9, the old call letters for WUSA9. Dig the sparkling, sweeping graphics effects!