Here are the possible solutions for they appear on mac's screen clue
Answer
Clue
Relevancy
icons
Clue
They appear on Mac's screen
Definition
ICON, a symbol or image, also IKON, EIKON
doacameo
Clue
Appear on screen like Hitchcock
rockbottom
Clue
With 133, the name of the band whose members appear in the theme answers. (They disbanded in 2012 after raising millions for literacy, but they're reuniting this weekend for one last concert.)
email
Clue
Screen-to-screen messages
Definition
to send electronic mail
icon
Clue
One found on a computer screen or movie screen
Computer screen on a computer screen
Screen image or screen idol
Definition
a symbol or image, also IKON, EIKON
showmance
Clue
Neologism for an on-screen/off-screen relationship
