NPR ended the program Talk of the Nation on June 27th, 2013.  NPR's replacement for Talk of the Nation is called Here and Now and airs on Colorado Public Radio Noon to 2pm Monday through Thursday.  Here and now is a magazine style news show.  Science Friday will continue each week at it's regular time, Noon to 2pm on Fridays.  Here are links to the each of the programs:

Talk of the Nation

Here and Now

Science Friday

Monday - Friday Saturday Sunday

12 am - 4 am
BBC World Service

12 am - 6 am
BBC World Service

12 am - 6 am
BBC World Service

4 am - 10 am
Morning Edition

6 am - 10 am
Weekend Edition

6 am - 10 am
Weekend Edition

10 am - 10:30 am
Colorado Matters

10 am - 11 am
Car Talk

10 am - 12 pm
A Prairie Home Companion

10:30 am - 11am
BBC World Service

11 am - 12 pm
Wait Wait...Don't Tell Me!

12 pm - 1 pm
Car Talk

11 am - 12 pm
Fresh Air

12 pm - 1 pm
This American Life

1 pm - 2 pm
Colorado Matters

12 pm -2 pm
Here and Now

1 pm - 2 pm
Fresh Air Weekend

2 pm - 3 pm
Ted Radio Hour

2 pm - 3 pm
The World

2 pm - 3 pm
Radiolab

3 pm - 4pm
All Things Considered

3 pm - 7 pm
All Things Considered

3 pm - 4 pm
All Things Considered

4 pm - 5 pm
Wait Wait...Don't Tell Me!

7 pm - 7:30 pm
Colorado Matters

4 pm - 6 pm
A Prairie Home Companion

5 pm - 6 pm
This American Life

7:30 pm - 8 pm
BBC World Service

6 pm - 7 pm 
The OpenAir Hour

6 pm - 7 pm 
The OpenAir Hour

8 pm - 9 pm
Fresh Air

7 pm - 8 pm
Colorado Matters

7 pm - 12 am
BBC World Service

9 pm - 10pm 
(Mondays)
Ted Radio Hour

9 pm - 10pm 
(Tuesday - Friday)
The OpenAir Hour

8 pm - 12 am
BBC World Service

9 pm - 12 am
BBC World Service