Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Network | Title | Notes | Language |
| --- | --- | --- | --- | --- |
| 2007.0 | SBS | Star King | Guest | Korean |
| 2008.0 | CCTV | 勇往直前 | Guest | Mandarin Chinese |
| 2009.0 | CTV | Variety Big Brother | Guest | Mandarin Chinese |
| 2009.0 | HBS | Happy Camp | Guest | Mandarin Chinese |
| 2009.0 | SBS | Star King | Guest | Korean |
| 2011.0 | SBS | Strong Heart | Guest | Korean |
| 2011.0 | CCTV | 开心歌迷汇 | Guest | Mandarin Chinese |
| 2011.0 | CTV | Variety Big Brother | Guest | Mandarin Chinese |
| 2013.0 | Olive TV | MasterChef Korea Celebrity | Celebrity Participant | Korean |
| 2013.0 | HBS | Happy Camp | Guest | Mandarin Chinese |
| 2013.0 | KBS2 | Happy Together | Guest | Korean |
| 2013.0 | KBS | Hello Counselor | Guest | Korean |
| 2013.0 | KBS | Mamma Mia | Guest | Korean |
Question:
What are the notes for the Mandarin Chinese program on CTV earlier than 2013?
Answer:
Guest, Guest