please help me about this,.. coz i'm interested on buying PCMCIA tv tuner but before i do that i want to know:

1. how to use PCMCIA tv tuner?

2. how PCMCIA tv tuner works?

3. if ever i buy 1 will i be able to watch my favorite tv shows here in philippines? (i don't have a cable connection)

4. does a PCMCIA tv tuner works like a TV's antenna to capture television channel?