Here's my poor man's bare-bones solution

1. Get a way to capture the output from the Telly and feed that as a Mic input into the Laptop.
I'm thinking in the line of suitable audio cables depending on what your telly has for output connectivity.

2. Install Freecoder on your laptop : Available from http://freecorder.com/
3. Tweak your contraption as necessary. 

Here's  some quick reference for you to get the perspective :

http://www.geek.com/articles/gadgets/review-freecorder-records-any-audio-played-on-your-pc-for-free-20070821/

PS : When Pluto was still a planet,  during the Audio Tape (Cassette) <--> Audio CD transition, that's how we used to convert our Musical relics into digital format. Back then, in place of a 3rd Party Software, most of our PC sound-card drivers came with some nifty tools to achieve the same.