Conversation so far:
What was Sakis Rouvas's first tv appearance?
he received an offer from Village Roadshow.
Did he accept and appear on the show?
CANNOTANSWER.
What was his next tv offer?
In Rouvas' first feature film, Alter Ego (of which he was also associate producer).

Question: Did he act in alter ego, or just sing?
Self-contained rewrite: Did Sakis Rouvas act in alter ego, or just sing?