Is my repentance valid after I encouraged my sisters to watch a Turkish series, then stopped praising it, but they still occasionally watch it with me without my encouragement?

Contemporary TV series are not permissible to watch or praise due to the forbidden acts they contain. A sound repentance requires abandoning the sin, resolving not to return to it, and feeling remorse. If you return to watching them after repenting, you must repent again. It is also necessary to advise sisters not to watch them.