More info after Read More.
Hitotsu Yane no Shita aka Under The Same Roof 
A car accident killed a couple, orphaning their six children. At that time, the eldest child, Tatsuya, was only 18 and had to attend marathon training. Lacking the confidence to take good care of his siblings, he separately relocated them to the homes of their relatives and adopters. However, after seven years and a career-ending injury, Tatsuya decides to reunite his brothers and sisters to live together under one roof. To his disappointment, he is met with resentment and discord.
Where To Buy
I haven't found this in any local video shop although you can get it from the usual Yesasia.com as well as Amazon.com. For buyers from Malaysia, Coolwin-video.com sell this for RM49-90 but I am not sure about the quality of the subtitles so I would be weary of that as well as the video quality since the series is very old and if it was never reissued I doubt the video quality would be clear.
Where To Download
Torrent source. For the sake of great subtitles, always get fansubs. SARS-Fansub has this series! Look for Hitotsu Yane no Shita and download 01 to 12. English subtitles are hardcoded.
Megaupload or Rapidshire links, use Hotspot Shield if from banned country. Video file is same as Source 1 except just different download source. Click here for all the files.
Hitotsu Yane no Shita 2 aka Under The Same Roof 2 
The Kashiwagi family's life story continues. Koume finally gets into an university, while Masaya (Masha) decides to travel round the world to save as many people as he can with his skills. Fumiya, on the other hand, breaks through his inferior feelings and is dating a blind penpal girlfriend. Meanwhile, Kazuya builds a strong relationship with his colleague, Miki, who then moves in with the Kashiwagi family after her mother's death, adding to the strength of the family together with the other new tenant, Shinjou. However, the love triangle between Tatsuya, Masaya and Koyuki is put to the test when one of them must battle a terminal illness.
Where To Buy
I haven't found this in any local video shop or online shops such as yesasia.com (at least not for Region 3 DVD). In fact at Coolwin-video.com it is listed as Out Of Print.
Where To Download
I am also looking for this, unfortunately. However if you're not picky and is those that doesn't like reading subtitles, I found the RMVB version of Cantonese audio here. It is a torrent file. Look for abbr_8bb5a35153af9ae48a14e73965f3d470.torrent (25.63 KB).
All RAW files unfortunately. No one has yet to subtitle this in English. However the picture quality is ok considering how old this series is and it is a TV rip. All at Megaupload, switch on Hotspot Shield before downloading if you're from a banned country. All files are originally from Clubbox. File sizes are between 200MB to 385MB and all are avi. I can only verify ep 1 is a full download so if you downloaded others and are truncated do inform me.
Ep 12 [END]