'Strong Heart' producers sent a secret message to Kang Ho Dong?

Sending a coded message seems like something straight out of 'Indiana Jones', but it's happened in real life! On the latest episode of SBS's 'Strong Heart', the producers of the show managed to send a coded message to Kang Ho Dong that they encrypted within the program itself. By hiding faint, individual letters in discreet places within the show, the producers spelled out a message that said, "Be strong Kang Ho Dong". The message seems to be a reference to his recent troubles with his alleged tax evasion, which resulted in his decision to temporarily retire from the entertainment scene.