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 | Play-by-play | Colour commentator(s) | Pregame host |
| --- | --- | --- | --- | --- |
| 1999.0 | CBC | Chris Cuthbert | Chris Walby | Brian Williams |
| 1998.0 | CBC | Chris Cuthbert | Chris Walby | Brian Williams |
| 1997.0 | CBC | Chris Cuthbert | David Archer | Brian Williams |
| 1996.0 | CBC | Chris Cuthbert | James Curry and David Archer | Brian Williams |
| 1995.0 | CBC | Don Wittman | Dan Kepley | Brian Williams and Scott Oake |
| 1994.0 | CBC | Don Wittman | James Curry and Dan Kepley | Brian Williams |
| 1993.0 | CBC | Don Wittman | James Curry and Dan Kepley | Brian Williams |
| 1992.0 | CBC | Don Wittman | Joe Galat | Brian Williams |
| 1991.0 | CBC | Don Wittman | Joe Galat | Brian Williams |
| 1990.0 | CBC | Don Wittman | Ron Lancaster | Brian Williams |
| 1990.0 | CFN | Bob Irving | Neil Lumsden and Nick Bastaja | Dave Hodge |
Question:
For which network was Chris Walby the color commentator after 1990?
Answer:
CBC, CBC