It's "Saturday Morning Live." - sponsored in living color for your kids' listening, viewing and joining in cultural pleasure beginning Oct. 7.

For the next three months, younger members of our television generation can turn off their TV sets and tune in to the magic of live performing arts entertainment on the stage for at least one Saturday each month during October, November and December, thanks to the Fairfax County Council of the Arts (FOCA).

The children's program is backed by a partial grant of $700 from the Virginia Commission of the Arts and Humanities, said Sue Scott of VCCA.

"They said this was one of the few children's programs they saw recently that they thought was worth funding," Scott said.

"Saturday Morning Live" is a varied program of music, movement, mime and theater featured as family entertainment each Saturday from 10 to 11:30 a.m. in Groveton High School, 6500 Quander Rd., Alexandria. Call 941-6066 for information.

The series will personally involve youngsters in exploring art forms they can see, hear, touch, take part in and even laugh at, FCCA says. And the price is right - 50 cents per person.

The opening program on Oct. 7 features a peformance with audience participation by the Archaesus Mime Troupe and orginal songs and humor by guitarist Barry Polisar, labeled by FCCA as the "I Eat Kids" man.

A Nov. 4 program includes Palisades Theatre Company in "Peter and the Wolf" and the Bob Devlin Street Band in "Folk Songs Americana." Devlin is billed as a "one-man band and street singer (who) plays three instruments simultaneously."

Craig Babcock will pantomime sketches, character stories and special illusions and demonstrate traditional mine techniques as part of the Dec. 2 program. He will joined by the Story Painters, an improvisional troupe.

The 35-year-old Alexandria Symphony Orchestra has scheduled seven public concerts for its 1978-79 season which opens Oct. 21. Featured soloist on the initial fall program is pianist Barbara Beach, who will pay Robert Schumann's "Piano Concerto." Other works on the 8:30 p.m. program will include Franz Liszt's "Orpheus," Peter Tchaikowski's "Francesca da Rimini" and Vincent D'Indy's "Istar."

The second fall concert at 8:30 p.m. Dec. 2 will highlight piano soloist Frank Conlon in a world premiere performance of Emerson Meyers' "Paino Concerto." Also to be performed are Jean Sebelius' "Symphony No. 1" and Anton Webern's "Im Sommerwind."

A special Christmas concert is scheduled at 8:30 p.m. on Dec. 9. The first 1979 concert at 3 p.m. Feb. 4 will feature Adelle Nicholson, mezzo soprano, singing Ernest Chausson's "Poeme de I'Amour de la Mere." The "Symphony No. 3 (Scottish)" by Felix Mendelssohn will complete this program.

Other 1979 program dates for the Alexandria Symphony are 3 p.m., March 25, 8:30 p.m., May 12, and a special "pops" concert at 5 p.m. May 20. All concerts will be held in T.C. Williams High School, 3330 King Street. Adult tickets are $3; students and senior citizens, $1.