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:
| Show | Last Aired | Previous Network | Retitled as/Same | New/Returning/Same Network | Returning |
| --- | --- | --- | --- | --- | --- |
| Charles in Charge | 1985.0 | CBS | Same | Syndication | January 3 |
| Blockbusters | 1982.0 | NBC | Same | Same | January 5 |
| Concentration | 1978.0 | Syndication | Classic Concentration | NBC | May 4 |
| We Got it Made | 1984.0 | NBC | Same | Same (on some O&O stations) | September 11 |
| High Rollers | 1980.0 | NBC | Same | Syndication | September 14 |
Question:
Which Last Aired has a Retitled as/Same of classic concentration?
Answer:
1978.0