Lets say i have a television class and BigTelevision class

```
class television
{
  protected:
       int a; 
  ...
}
class BigTelevision:public television
{
   private:
   int b;
...
}

```

I want to contain a collection of a mixed of television and BigTelevision, what options do i have.
I know one way is to use array but the problem with this is that if i declare an array of television type to store them the additional attributes(eg int b) of BigTelevision would be lost.

How can i work around this ?