View source for 4.The average number of TVs per home.

                                  1970 1980 1985 1990 1994 1995 1996 1997 1998 1999 2000 2001  Unit
 Average number of sets per home   1.4  1.7  1.8  2.1  2.2  2.3  2.3  2.4  2.4  2.4  2.4  2.4 Millions

As to these figures, we see that the average number of sets per home has been almost not changed for 5 years from 1997 to 2001. But it doesn't mean that the television does not have good future. We could think of this unchanged number that the television sets have come into almost every home. 

Data resource (FCC annual report)