There are only two episodes in which Ricky's full name is given. In this episode, he gives it as Ricardo Alberto Fernando Ricardo y Acha. In another episode ("Lucy Raises Tulips"), Lucy gives his first name as Enrique.
Ricky gives his full name to Western Union as: Ricardo Alberto Fernando Ricardo y Acha.
In this episode Ricky announces that the Ricardo's wedding anniversary is April 7th.
When Lucy walks into the nightclub, the band is playing "La Vie En Rose".