but then again, so is marriage. >> that's what makes one texas couple so amazing. yesterday they celebrated 3/4 of a century together. and they can still laugh about it. here is jamie william of kltv in tyler, texas. >> reporter: leila and virgil harris have passed silver, gold, and diamond and hit the diamond gold anniversary. so many years they ran out of precious stones and metals and had to combine them. >> oh, i've got to stop. >> reporter: he's 97 and still gets around just fine. she's 96 and still has plenty to say. they met at a service station where virgil worked. >> her sister came down and bought some gasoline. two gallons for a quarter. so we met. >> i thought he was the cutest thing. my daddy cried when he saw him. but he is a good-looking man. >> reporter: so dad approved of a first date. >> we went out to the old mill inn, which is the place everybody went.