diff --git a/youtube_dl/extractor/discovery.py b/youtube_dl/extractor/discovery.py
index 6a2712cc5..e0139cc86 100644
--- a/youtube_dl/extractor/discovery.py
+++ b/youtube_dl/extractor/discovery.py
@@ -13,8 +13,8 @@ from ..compat import compat_HTTPError
 class DiscoveryIE(DiscoveryGoBaseIE):
     _VALID_URL = r'''(?x)https?://
         (?P<site>
-            (?:(?:www|go)\.)?discovery|
-            (?:www\.)?
+            go\.discovery|
+            www\.
                 (?:
                     investigationdiscovery|
                     discoverylife|
@@ -22,8 +22,7 @@ class DiscoveryIE(DiscoveryGoBaseIE):
                     ahctv|
                     destinationamerica|
                     sciencechannel|
-                    tlc|
-                    velocity
+                    tlc
                 )|
             watch\.
                 (?:
@@ -83,7 +82,7 @@ class DiscoveryIE(DiscoveryGoBaseIE):
                     'authRel': 'authorization',
                     'client_id': '3020a40c2356a645b4b4',
                     'nonce': ''.join([random.choice(string.ascii_letters) for _ in range(32)]),
-                    'redirectUri': 'https://fusion.ddmcdn.com/app/mercury-sdk/180/redirectHandler.html?https://www.%s.com' % site,
+                    'redirectUri': 'https://www.discovery.com/',
                 })['access_token']
 
         headers = self.geo_verification_headers()
diff --git a/youtube_dl/extractor/scrippsnetworks.py b/youtube_dl/extractor/scrippsnetworks.py
index afab9591d..b40b4c4af 100644
--- a/youtube_dl/extractor/scrippsnetworks.py
+++ b/youtube_dl/extractor/scrippsnetworks.py
@@ -106,7 +106,7 @@ class ScrippsNetworksWatchIE(AWSIE):
 
 
 class ScrippsNetworksIE(InfoExtractor):
-    _VALID_URL = r'https?://(?:www\.)?(?P<site>cookingchanneltv|(?:diy|food)network|hgtv|travelchannel)\.com/videos/[0-9a-z-]+-(?P<id>\d+)'
+    _VALID_URL = r'https?://(?:www\.)?(?P<site>cookingchanneltv|discovery|(?:diy|food)network|hgtv|travelchannel)\.com/videos/[0-9a-z-]+-(?P<id>\d+)'
     _TESTS = [{
         'url': 'https://www.cookingchanneltv.com/videos/the-best-of-the-best-0260338',
         'info_dict': {
@@ -131,9 +131,13 @@ class ScrippsNetworksIE(InfoExtractor):
     }, {
         'url': 'https://www.travelchannel.com/videos/two-climates-one-bag-5302184',
         'only_matching': True,
+    }, {
+        'url': 'https://www.discovery.com/videos/guardians-of-the-glades-cooking-with-tom-cobb-5578368',
+        'only_matching': True,
     }]
     _ACCOUNT_MAP = {
         'cookingchanneltv': 2433005105,
+        'discovery': 2706091867,
         'diynetwork': 2433004575,
         'foodnetwork': 2433005105,
         'hgtv': 2433004575,