Barenaked Ladies - The Big Bang Theory Theme tab

First tab so i might not be very good at doing it yet.

            C                     D

e|--------------------------------|-------------------------|
b|----------1---------------------|--3----------------------|
g|--------------0---------------2-|-----2-------------------|
d|------2-------------------0-----|-------------------------|
a|---3----------------------------|-------------------------|
E|--------------------------------|-------------------------|

      G      D      Em

e|----3------2------0----------------|----------------------|
b|----3------3------0----------------|----------------------|
g|----0------2------0----------------|----------------------|
d|----0------0------2----------------|----------------------|
a|----2------0------2----------------|----------------------|
E|----3------0------0----------------|----------------------|

  C                     D
[ Tab from: http://www.guitaretab.com/b/barenaked-ladies/175310.html ]
e|--------------------------------|-------------------------|
b|----------1---------------------|--3----------------------|
g|--------------0---------------2-|-----2-------------------|
d|------2-------------------0-----|-------------------------|
a|---3----------------------------|-------------------------|
E|--------------------------------|-------------------------|

      G      D      Em

e|----3------2------0----------------|----------------------|
b|----3------3------0----------------|----------------------|
g|----0------2------0----------------|----------------------|
d|----0------0------2----------------|----------------------|
a|----2------0------2----------------|----------------------|
E|----3------0------0----------------|----------------------|

And i think that's the intro. I'm not 100% but i think the rest of the song is just 
the C, D, G, D and Em, patteren in time with the singing.

Hope it's alright and any feedback would be great.