Walking On Sunshine
The Theme Song of the Original TGIS. Played during the opening credits
of the second season [or so I think]. Katrina and The Waves (1984)

Just Got Lucky
The Theme Song of the Second Batch. The lyrics are transcribed by us,
and they aren't 100% correct. Close though! Now available. Jo Boxers (1984)

Basta't Tayo'y Magkasama
The ending song of the final episode of Growing Up.
Lyrics soon.

Love Is All That Matters
Apparently this song has been played on TGIS but
as far as I know it's only on G-UP. Lyrics now available. Eric Carmen.

The Best Things in Life Are Free
Lyrics soon.

For more of theme songs, check out Dingdong and Toni.