RHODA’S DAY: Valerie Harper hasn’t been on...

RHODA’S DAY: Valerie Harper hasn’t been on the tube much these days, partly because she’s busy with the causes of world hunger and saving the environment. Her environmental zeal brings her to Anaheim later this month. . . . Harper, whose “Rhoda” TV character catapulted her to fame, will help the city parks people with a tree-planting effort at Peralta Canyon Park on April 18: 15 Monterey pines, to be planted where the park faces the Riverside Freeway.