I just got a DirectTV system and noticed that the dish is hooked to the satellite receiver via an RF cable. Since a system can only be as strong as its weakest link, is it worth it to hook the satellite receiver to my TV via S-video (or invest in a new receiver with component)? Right now my TV is hooked to the system using RF and I'm debating whether or not I should bother to change it. On a similar note, my TV right now (an old RCA) doesn't accept S-video or component (but I am planning on upgrading very soon). For now, should I use composite connections rather than the RF connections? Thanks.