Mahabharatham
Shantanu accepts Bhishma as son
S1 E1:
Ganga informs Shantanu that Bhishma is their son. Satyavati learns about Bhishma and leaves Shantanu. At the palace, Shantanu announces Bhishma as the Prince of Hastinapur. Bhishma visits Satyavati to convince her to stay with Shantanu, but she asks Shantanu to choose between her and his son.